Finding the Fourth Proportional to 2,105,499.68, 2,905,618.92 and 1,187,771.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,499.68 : 2,905,618.92 = 1,187,771.32 : x
2. Step 2: Convert to fraction form
   2,105,499.68/2,905,618.92 = 1,187,771.32/x
3. Step 3: Cross multiply
   2,105,499.68x = 2,905,618.92 × 1,187,771.32
4. Step 4: Simplify right side
   2,105,499.68x = 3,451,210,820,025.37
5. Step 5: Solve for x
   x = 3,451,210,820,025.37/2,105,499.68
6. Step 6: Final answer
   x = 1,639,140.99