Finding the Fourth Proportional to 1,631.43, 2,443.86 and 752.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,631.43 : 2,443.86 = 752.70 : x
2. Step 2: Convert to fraction form
   1,631.43/2,443.86 = 752.70/x
3. Step 3: Cross multiply
   1,631.43x = 2,443.86 × 752.70
4. Step 4: Simplify right side
   1,631.43x = 1,839,493.42
5. Step 5: Solve for x
   x = 1,839,493.42/1,631.43
6. Step 6: Final answer
   x = 1,127.53