Finding the Fourth Proportional to 526,404.30, 788,440.05 and 433,092.30

Step by Step Solution

1. Step 1: Write the proportion equation
   526,404.30 : 788,440.05 = 433,092.30 : x
2. Step 2: Convert to fraction form
   526,404.30/788,440.05 = 433,092.30/x
3. Step 3: Cross multiply
   526,404.30x = 788,440.05 × 433,092.30
4. Step 4: Simplify right side
   526,404.30x = 341,467,314,666.62
5. Step 5: Solve for x
   x = 341,467,314,666.62/526,404.30
6. Step 6: Final answer
   x = 648,678.81