Finding the Fourth Proportional to 1,152.64, 1,726.22 and 631.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152.64 : 1,726.22 = 631.86 : x
2. Step 2: Convert to fraction form
   1,152.64/1,726.22 = 631.86/x
3. Step 3: Cross multiply
   1,152.64x = 1,726.22 × 631.86
4. Step 4: Simplify right side
   1,152.64x = 1,090,729.37
5. Step 5: Solve for x
   x = 1,090,729.37/1,152.64
6. Step 6: Final answer
   x = 946.29