Finding the Fourth Proportional to 860,573.59, 1,290,852.15 and 523,709.98

Step by Step Solution

1. Step 1: Write the proportion equation
   860,573.59 : 1,290,852.15 = 523,709.98 : x
2. Step 2: Convert to fraction form
   860,573.59/1,290,852.15 = 523,709.98/x
3. Step 3: Cross multiply
   860,573.59x = 1,290,852.15 × 523,709.98
4. Step 4: Simplify right side
   860,573.59x = 676,032,153,659.46
5. Step 5: Solve for x
   x = 676,032,153,659.46/860,573.59
6. Step 6: Final answer
   x = 785,559.96