Finding the Fourth Proportional to 2,070,665,694.50, 2,857,589,172.83 and 1,224,618,265.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,070,665,694.50 : 2,857,589,172.83 = 1,224,618,265.51 : x
2. Step 2: Convert to fraction form
   2,070,665,694.50/2,857,589,172.83 = 1,224,618,265.51/x
3. Step 3: Cross multiply
   2,070,665,694.50x = 2,857,589,172.83 × 1,224,618,265.51
4. Step 4: Simplify right side
   2,070,665,694.50x = 3,499,455,896,367,025,152
5. Step 5: Solve for x
   x = 3,499,455,896,367,025,152/2,070,665,694.50
6. Step 6: Final answer
   x = 1,690,014,909.54