Finding the Fourth Proportional to 1,081.91, 1,493.33 and 634.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.91 : 1,493.33 = 634.18 : x
2. Step 2: Convert to fraction form
   1,081.91/1,493.33 = 634.18/x
3. Step 3: Cross multiply
   1,081.91x = 1,493.33 × 634.18
4. Step 4: Simplify right side
   1,081.91x = 947,040.02
5. Step 5: Solve for x
   x = 947,040.02/1,081.91
6. Step 6: Final answer
   x = 875.34