Finding the Fourth Proportional to 1,364.49, 2,047.34 and 498.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,364.49 : 2,047.34 = 498.60 : x
2. Step 2: Convert to fraction form
   1,364.49/2,047.34 = 498.60/x
3. Step 3: Cross multiply
   1,364.49x = 2,047.34 × 498.60
4. Step 4: Simplify right side
   1,364.49x = 1,020,803.72
5. Step 5: Solve for x
   x = 1,020,803.72/1,364.49
6. Step 6: Final answer
   x = 748.12