Finding the Fourth Proportional to 1,100.98, 1,642.96 and 926.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.98 : 1,642.96 = 926.02 : x
2. Step 2: Convert to fraction form
   1,100.98/1,642.96 = 926.02/x
3. Step 3: Cross multiply
   1,100.98x = 1,642.96 × 926.02
4. Step 4: Simplify right side
   1,100.98x = 1,521,413.82
5. Step 5: Solve for x
   x = 1,521,413.82/1,100.98
6. Step 6: Final answer
   x = 1,381.87