Finding the Fourth Proportional to 1,527.16, 2,107.52 and 863.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,527.16 : 2,107.52 = 863.99 : x
2. Step 2: Convert to fraction form
   1,527.16/2,107.52 = 863.99/x
3. Step 3: Cross multiply
   1,527.16x = 2,107.52 × 863.99
4. Step 4: Simplify right side
   1,527.16x = 1,820,887.59
5. Step 5: Solve for x
   x = 1,820,887.59/1,527.16
6. Step 6: Final answer
   x = 1,192.34