Finding the Fourth Proportional to 1,526.72, 2,106.94 and 863.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,526.72 : 2,106.94 = 863.54 : x
2. Step 2: Convert to fraction form
   1,526.72/2,106.94 = 863.54/x
3. Step 3: Cross multiply
   1,526.72x = 2,106.94 × 863.54
4. Step 4: Simplify right side
   1,526.72x = 1,819,426.97
5. Step 5: Solve for x
   x = 1,819,426.97/1,526.72
6. Step 6: Final answer
   x = 1,191.72