Finding the Fourth Proportional to 1,492.54, 2,238.83 and 452.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,492.54 : 2,238.83 = 452.55 : x
2. Step 2: Convert to fraction form
   1,492.54/2,238.83 = 452.55/x
3. Step 3: Cross multiply
   1,492.54x = 2,238.83 × 452.55
4. Step 4: Simplify right side
   1,492.54x = 1,013,182.52
5. Step 5: Solve for x
   x = 1,013,182.52/1,492.54
6. Step 6: Final answer
   x = 678.83