Finding the Fourth Proportional to 1,610.01, 2,413.17 and 742.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,610.01 : 2,413.17 = 742.50 : x
2. Step 2: Convert to fraction form
   1,610.01/2,413.17 = 742.50/x
3. Step 3: Cross multiply
   1,610.01x = 2,413.17 × 742.50
4. Step 4: Simplify right side
   1,610.01x = 1,791,778.73
5. Step 5: Solve for x
   x = 1,791,778.73/1,610.01
6. Step 6: Final answer
   x = 1,112.90