Finding the Fourth Proportional to 2,573,385.92, 3,860,111.74 and 680,111

Step by Step Solution

1. Step 1: Write the proportion equation
   2,573,385.92 : 3,860,111.74 = 680,111 : x
2. Step 2: Convert to fraction form
   2,573,385.92/3,860,111.74 = 680,111/x
3. Step 3: Cross multiply
   2,573,385.92x = 3,860,111.74 × 680,111
4. Step 4: Simplify right side
   2,573,385.92x = 2,625,304,455,603.14
5. Step 5: Solve for x
   x = 2,625,304,455,603.14/2,573,385.92
6. Step 6: Final answer
   x = 1,020,175.18