Finding the Fourth Proportional to 2,551.45, 3,521.20 and 1,432.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551.45 : 3,521.20 = 1,432.46 : x
2. Step 2: Convert to fraction form
   2,551.45/3,521.20 = 1,432.46/x
3. Step 3: Cross multiply
   2,551.45x = 3,521.20 × 1,432.46
4. Step 4: Simplify right side
   2,551.45x = 5,043,961.37
5. Step 5: Solve for x
   x = 5,043,961.37/2,551.45
6. Step 6: Final answer
   x = 1,976.90