Finding the Fourth Proportional to 1,422.72, 2,132.82 and 497.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.72 : 2,132.82 = 497.70 : x
2. Step 2: Convert to fraction form
   1,422.72/2,132.82 = 497.70/x
3. Step 3: Cross multiply
   1,422.72x = 2,132.82 × 497.70
4. Step 4: Simplify right side
   1,422.72x = 1,061,504.51
5. Step 5: Solve for x
   x = 1,061,504.51/1,422.72
6. Step 6: Final answer
   x = 746.11