Finding the Fourth Proportional to 1,530.32, 2,111.88 and 1,025.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,530.32 : 2,111.88 = 1,025.28 : x
2. Step 2: Convert to fraction form
   1,530.32/2,111.88 = 1,025.28/x
3. Step 3: Cross multiply
   1,530.32x = 2,111.88 × 1,025.28
4. Step 4: Simplify right side
   1,530.32x = 2,165,268.33
5. Step 5: Solve for x
   x = 2,165,268.33/1,530.32
6. Step 6: Final answer
   x = 1,414.91