Finding the Fourth Proportional to 1,248, 1,723.04 and 1,116.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,248 : 1,723.04 = 1,116.78 : x
2. Step 2: Convert to fraction form
   1,248/1,723.04 = 1,116.78/x
3. Step 3: Cross multiply
   1,248x = 1,723.04 × 1,116.78
4. Step 4: Simplify right side
   1,248x = 1,924,256.61
5. Step 5: Solve for x
   x = 1,924,256.61/1,248
6. Step 6: Final answer
   x = 1,541.87