Finding the Fourth Proportional to 2,551.36, 3,521.06 and 1,432.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551.36 : 3,521.06 = 1,432.28 : x
2. Step 2: Convert to fraction form
   2,551.36/3,521.06 = 1,432.28/x
3. Step 3: Cross multiply
   2,551.36x = 3,521.06 × 1,432.28
4. Step 4: Simplify right side
   2,551.36x = 5,043,143.82
5. Step 5: Solve for x
   x = 5,043,143.82/2,551.36
6. Step 6: Final answer
   x = 1,976.65