Finding the Fourth Proportional to 1,616,540.10, 2,230,840.89 and 891,413.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,616,540.10 : 2,230,840.89 = 891,413.52 : x
2. Step 2: Convert to fraction form
   1,616,540.10/2,230,840.89 = 891,413.52/x
3. Step 3: Cross multiply
   1,616,540.10x = 2,230,840.89 × 891,413.52
4. Step 4: Simplify right side
   1,616,540.10x = 1,988,601,730,314.83
5. Step 5: Solve for x
   x = 1,988,601,730,314.83/1,616,540.10
6. Step 6: Final answer
   x = 1,230,159.23