Finding the Fourth Proportional to 835,100.17, 1,253,279.99 and 611,038.69

Step by Step Solution

1. Step 1: Write the proportion equation
   835,100.17 : 1,253,279.99 = 611,038.69 : x
2. Step 2: Convert to fraction form
   835,100.17/1,253,279.99 = 611,038.69/x
3. Step 3: Cross multiply
   835,100.17x = 1,253,279.99 × 611,038.69
4. Step 4: Simplify right side
   835,100.17x = 765,802,561,687.21
5. Step 5: Solve for x
   x = 765,802,561,687.21/835,100.17
6. Step 6: Final answer
   x = 917,018.81