Finding the Fourth Proportional to 837,010.89, 1,155,025.98 and 455,034.33

Step by Step Solution

1. Step 1: Write the proportion equation
   837,010.89 : 1,155,025.98 = 455,034.33 : x
2. Step 2: Convert to fraction form
   837,010.89/1,155,025.98 = 455,034.33/x
3. Step 3: Cross multiply
   837,010.89x = 1,155,025.98 × 455,034.33
4. Step 4: Simplify right side
   837,010.89x = 525,576,472,941.89
5. Step 5: Solve for x
   x = 525,576,472,941.89/837,010.89
6. Step 6: Final answer
   x = 627,920.71