Finding the Fourth Proportional to 1,187,150.83, 1,638,086.94 and 670,716.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,187,150.83 : 1,638,086.94 = 670,716.29 : x
2. Step 2: Convert to fraction form
   1,187,150.83/1,638,086.94 = 670,716.29/x
3. Step 3: Cross multiply
   1,187,150.83x = 1,638,086.94 × 670,716.29
4. Step 4: Simplify right side
   1,187,150.83x = 1,098,691,593,700.16
5. Step 5: Solve for x
   x = 1,098,691,593,700.16/1,187,150.83
6. Step 6: Final answer
   x = 925,486.10