Finding the Fourth Proportional to 2,171,816.50, 2,997,186.83 and 1,312,210.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171,816.50 : 2,997,186.83 = 1,312,210.62 : x
2. Step 2: Convert to fraction form
   2,171,816.50/2,997,186.83 = 1,312,210.62/x
3. Step 3: Cross multiply
   2,171,816.50x = 2,997,186.83 × 1,312,210.62
4. Step 4: Simplify right side
   2,171,816.50x = 3,932,940,388,450.14
5. Step 5: Solve for x
   x = 3,932,940,388,450.14/2,171,816.50
6. Step 6: Final answer
   x = 1,810,899.03