Finding the Fourth Proportional to 2,551.34, 3,520.91 and 1,432.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551.34 : 3,520.91 = 1,432.36 : x
2. Step 2: Convert to fraction form
   2,551.34/3,520.91 = 1,432.36/x
3. Step 3: Cross multiply
   2,551.34x = 3,520.91 × 1,432.36
4. Step 4: Simplify right side
   2,551.34x = 5,043,225.60
5. Step 5: Solve for x
   x = 5,043,225.60/2,551.34
6. Step 6: Final answer
   x = 1,976.70