Finding the Fourth Proportional to 1,925.64, 2,657.51 and 1,086.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,925.64 : 2,657.51 = 1,086.41 : x
2. Step 2: Convert to fraction form
   1,925.64/2,657.51 = 1,086.41/x
3. Step 3: Cross multiply
   1,925.64x = 2,657.51 × 1,086.41
4. Step 4: Simplify right side
   1,925.64x = 2,887,150.72
5. Step 5: Solve for x
   x = 2,887,150.72/1,925.64
6. Step 6: Final answer
   x = 1,499.32