Finding the Fourth Proportional to 1,527.42, 2,108.93 and 938.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,527.42 : 2,108.93 = 938.15 : x
2. Step 2: Convert to fraction form
   1,527.42/2,108.93 = 938.15/x
3. Step 3: Cross multiply
   1,527.42x = 2,108.93 × 938.15
4. Step 4: Simplify right side
   1,527.42x = 1,978,492.68
5. Step 5: Solve for x
   x = 1,978,492.68/1,527.42
6. Step 6: Final answer
   x = 1,295.32