Finding the Fourth Proportional to 1,925.64, 2,656.71 and 1,139.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,925.64 : 2,656.71 = 1,139.54 : x
2. Step 2: Convert to fraction form
   1,925.64/2,656.71 = 1,139.54/x
3. Step 3: Cross multiply
   1,925.64x = 2,656.71 × 1,139.54
4. Step 4: Simplify right side
   1,925.64x = 3,027,414.03
5. Step 5: Solve for x
   x = 3,027,414.03/1,925.64
6. Step 6: Final answer
   x = 1,572.16