Finding the Fourth Proportional to 1,234.56, 1,851.52 and 368.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,234.56 : 1,851.52 = 368.72 : x
2. Step 2: Convert to fraction form
   1,234.56/1,851.52 = 368.72/x
3. Step 3: Cross multiply
   1,234.56x = 1,851.52 × 368.72
4. Step 4: Simplify right side
   1,234.56x = 682,692.45
5. Step 5: Solve for x
   x = 682,692.45/1,234.56
6. Step 6: Final answer
   x = 552.98