Finding the Fourth Proportional to 2,551.50, 3,521.20 and 1,432.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551.50 : 3,521.20 = 1,432.38 : x
2. Step 2: Convert to fraction form
   2,551.50/3,521.20 = 1,432.38/x
3. Step 3: Cross multiply
   2,551.50x = 3,521.20 × 1,432.38
4. Step 4: Simplify right side
   2,551.50x = 5,043,696.46
5. Step 5: Solve for x
   x = 5,043,696.46/2,551.50
6. Step 6: Final answer
   x = 1,976.76