Finding the Fourth Proportional to 1,807.89, 2,494.92 and 1,061.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,807.89 : 2,494.92 = 1,061.57 : x
2. Step 2: Convert to fraction form
   1,807.89/2,494.92 = 1,061.57/x
3. Step 3: Cross multiply
   1,807.89x = 2,494.92 × 1,061.57
4. Step 4: Simplify right side
   1,807.89x = 2,648,519.75
5. Step 5: Solve for x
   x = 2,648,519.75/1,807.89
6. Step 6: Final answer
   x = 1,464.98