Finding the Fourth Proportional to 1,105.79, 1,525.48 and 707.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.79 : 1,525.48 = 707.27 : x
2. Step 2: Convert to fraction form
   1,105.79/1,525.48 = 707.27/x
3. Step 3: Cross multiply
   1,105.79x = 1,525.48 × 707.27
4. Step 4: Simplify right side
   1,105.79x = 1,078,920.82
5. Step 5: Solve for x
   x = 1,078,920.82/1,105.79
6. Step 6: Final answer
   x = 975.70