Finding the Fourth Proportional to 1,413.07, 2,111.00 and 915.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,413.07 : 2,111.00 = 915.42 : x
2. Step 2: Convert to fraction form
   1,413.07/2,111.00 = 915.42/x
3. Step 3: Cross multiply
   1,413.07x = 2,111.00 × 915.42
4. Step 4: Simplify right side
   1,413.07x = 1,932,453.91
5. Step 5: Solve for x
   x = 1,932,453.91/1,413.07
6. Step 6: Final answer
   x = 1,367.56