Finding the Fourth Proportional to 1,200.48, 1,801.34 and 498.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200.48 : 1,801.34 = 498.22 : x
2. Step 2: Convert to fraction form
   1,200.48/1,801.34 = 498.22/x
3. Step 3: Cross multiply
   1,200.48x = 1,801.34 × 498.22
4. Step 4: Simplify right side
   1,200.48x = 897,463.61
5. Step 5: Solve for x
   x = 897,463.61/1,200.48
6. Step 6: Final answer
   x = 747.59