Finding the Fourth Proportional to 1,291.29, 1,781.98 and 701.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,291.29 : 1,781.98 = 701.82 : x
2. Step 2: Convert to fraction form
   1,291.29/1,781.98 = 701.82/x
3. Step 3: Cross multiply
   1,291.29x = 1,781.98 × 701.82
4. Step 4: Simplify right side
   1,291.29x = 1,250,627.45
5. Step 5: Solve for x
   x = 1,250,627.45/1,291.29
6. Step 6: Final answer
   x = 968.51