Finding the Fourth Proportional to 1,423.22, 2,134.32 and 498.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,423.22 : 2,134.32 = 498.54 : x
2. Step 2: Convert to fraction form
   1,423.22/2,134.32 = 498.54/x
3. Step 3: Cross multiply
   1,423.22x = 2,134.32 × 498.54
4. Step 4: Simplify right side
   1,423.22x = 1,064,043.89
5. Step 5: Solve for x
   x = 1,064,043.89/1,423.22
6. Step 6: Final answer
   x = 747.63