Finding the Fourth Proportional to 1,528.49, 2,292.69 and 432.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,528.49 : 2,292.69 = 432.83 : x
2. Step 2: Convert to fraction form
   1,528.49/2,292.69 = 432.83/x
3. Step 3: Cross multiply
   1,528.49x = 2,292.69 × 432.83
4. Step 4: Simplify right side
   1,528.49x = 992,333.55
5. Step 5: Solve for x
   x = 992,333.55/1,528.49
6. Step 6: Final answer
   x = 649.23