Finding the Fourth Proportional to 1,527.07, 2,106.98 and 863.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,527.07 : 2,106.98 = 863.83 : x
2. Step 2: Convert to fraction form
   1,527.07/2,106.98 = 863.83/x
3. Step 3: Cross multiply
   1,527.07x = 2,106.98 × 863.83
4. Step 4: Simplify right side
   1,527.07x = 1,820,072.53
5. Step 5: Solve for x
   x = 1,820,072.53/1,527.07
6. Step 6: Final answer
   x = 1,191.87