Finding the Fourth Proportional to 2,551.77, 3,520.56 and 1,432.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551.77 : 3,520.56 = 1,432.55 : x
2. Step 2: Convert to fraction form
   2,551.77/3,520.56 = 1,432.55/x
3. Step 3: Cross multiply
   2,551.77x = 3,520.56 × 1,432.55
4. Step 4: Simplify right side
   2,551.77x = 5,043,392.40
5. Step 5: Solve for x
   x = 5,043,392.40/2,551.77
6. Step 6: Final answer
   x = 1,976.43