Finding the Fourth Proportional to 2,128.32, 3,191.58 and 1,032.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.32 : 3,191.58 = 1,032.12 : x
2. Step 2: Convert to fraction form
   2,128.32/3,191.58 = 1,032.12/x
3. Step 3: Cross multiply
   2,128.32x = 3,191.58 × 1,032.12
4. Step 4: Simplify right side
   2,128.32x = 3,294,093.55
5. Step 5: Solve for x
   x = 3,294,093.55/2,128.32
6. Step 6: Final answer
   x = 1,547.74