Finding the Fourth Proportional to 2,551.55, 3,521.23 and 1,432.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551.55 : 3,521.23 = 1,432.70 : x
2. Step 2: Convert to fraction form
   2,551.55/3,521.23 = 1,432.70/x
3. Step 3: Cross multiply
   2,551.55x = 3,521.23 × 1,432.70
4. Step 4: Simplify right side
   2,551.55x = 5,044,845.03
5. Step 5: Solve for x
   x = 5,044,845.03/2,551.55
6. Step 6: Final answer
   x = 1,977.17