Finding the Fourth Proportional to 1,233.60, 1,848.78 and 503.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,233.60 : 1,848.78 = 503.72 : x
2. Step 2: Convert to fraction form
   1,233.60/1,848.78 = 503.72/x
3. Step 3: Cross multiply
   1,233.60x = 1,848.78 × 503.72
4. Step 4: Simplify right side
   1,233.60x = 931,267.46
5. Step 5: Solve for x
   x = 931,267.46/1,233.60
6. Step 6: Final answer
   x = 754.92