Finding the Fourth Proportional to 763,116.30, 1,053,047.79 and 423,557.82

Step by Step Solution

1. Step 1: Write the proportion equation
   763,116.30 : 1,053,047.79 = 423,557.82 : x
2. Step 2: Convert to fraction form
   763,116.30/1,053,047.79 = 423,557.82/x
3. Step 3: Cross multiply
   763,116.30x = 1,053,047.79 × 423,557.82
4. Step 4: Simplify right side
   763,116.30x = 446,026,626,288.22
5. Step 5: Solve for x
   x = 446,026,626,288.22/763,116.30
6. Step 6: Final answer
   x = 584,480.54