Finding the Fourth Proportional to 2,551.32, 3,520.70 and 1,432.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551.32 : 3,520.70 = 1,432.12 : x
2. Step 2: Convert to fraction form
   2,551.32/3,520.70 = 1,432.12/x
3. Step 3: Cross multiply
   2,551.32x = 3,520.70 × 1,432.12
4. Step 4: Simplify right side
   2,551.32x = 5,042,064.88
5. Step 5: Solve for x
   x = 5,042,064.88/2,551.32
6. Step 6: Final answer
   x = 1,976.26