Finding the Fourth Proportional to 2,566,146.65, 3,850,074.99 and 860,458.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,566,146.65 : 3,850,074.99 = 860,458.56 : x
2. Step 2: Convert to fraction form
   2,566,146.65/3,850,074.99 = 860,458.56/x
3. Step 3: Cross multiply
   2,566,146.65x = 3,850,074.99 × 860,458.56
4. Step 4: Simplify right side
   2,566,146.65x = 3,312,829,981,787.42
5. Step 5: Solve for x
   x = 3,312,829,981,787.42/2,566,146.65
6. Step 6: Final answer
   x = 1,290,974.54