Finding the Fourth Proportional to 1,106.16, 1,526.18 and 712.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,106.16 : 1,526.18 = 712.86 : x
2. Step 2: Convert to fraction form
   1,106.16/1,526.18 = 712.86/x
3. Step 3: Cross multiply
   1,106.16x = 1,526.18 × 712.86
4. Step 4: Simplify right side
   1,106.16x = 1,087,952.67
5. Step 5: Solve for x
   x = 1,087,952.67/1,106.16
6. Step 6: Final answer
   x = 983.54