Finding the Fourth Proportional to 1,526.57, 2,106.52 and 863.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,526.57 : 2,106.52 = 863.48 : x
2. Step 2: Convert to fraction form
   1,526.57/2,106.52 = 863.48/x
3. Step 3: Cross multiply
   1,526.57x = 2,106.52 × 863.48
4. Step 4: Simplify right side
   1,526.57x = 1,818,925.20
5. Step 5: Solve for x
   x = 1,818,925.20/1,526.57
6. Step 6: Final answer
   x = 1,191.52