Finding the Fourth Proportional to 2,551.87, 3,521.57 and 1,432.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551.87 : 3,521.57 = 1,432.81 : x
2. Step 2: Convert to fraction form
   2,551.87/3,521.57 = 1,432.81/x
3. Step 3: Cross multiply
   2,551.87x = 3,521.57 × 1,432.81
4. Step 4: Simplify right side
   2,551.87x = 5,045,740.71
5. Step 5: Solve for x
   x = 5,045,740.71/2,551.87
6. Step 6: Final answer
   x = 1,977.27