Finding the Fourth Proportional to 619,092.18, 854,032.77 and 404,357.94

Step by Step Solution

1. Step 1: Write the proportion equation
   619,092.18 : 854,032.77 = 404,357.94 : x
2. Step 2: Convert to fraction form
   619,092.18/854,032.77 = 404,357.94/x
3. Step 3: Cross multiply
   619,092.18x = 854,032.77 × 404,357.94
4. Step 4: Simplify right side
   619,092.18x = 345,334,931,569.69
5. Step 5: Solve for x
   x = 345,334,931,569.69/619,092.18
6. Step 6: Final answer
   x = 557,808.58