Finding the Fourth Proportional to 2,288.45, 3,432.71 and 1,055.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.45 : 3,432.71 = 1,055.52 : x
2. Step 2: Convert to fraction form
   2,288.45/3,432.71 = 1,055.52/x
3. Step 3: Cross multiply
   2,288.45x = 3,432.71 × 1,055.52
4. Step 4: Simplify right side
   2,288.45x = 3,623,296.70
5. Step 5: Solve for x
   x = 3,623,296.70/2,288.45
6. Step 6: Final answer
   x = 1,583.30