Finding the Fourth Proportional to 1,100.34, 1,517.81 and 707.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.34 : 1,517.81 = 707.22 : x
2. Step 2: Convert to fraction form
   1,100.34/1,517.81 = 707.22/x
3. Step 3: Cross multiply
   1,100.34x = 1,517.81 × 707.22
4. Step 4: Simplify right side
   1,100.34x = 1,073,422.05
5. Step 5: Solve for x
   x = 1,073,422.05/1,100.34
6. Step 6: Final answer
   x = 975.54