Finding the Fourth Proportional to 2,116,088.96, 2,921,413.24 and 1,393,038.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116,088.96 : 2,921,413.24 = 1,393,038.58 : x
2. Step 2: Convert to fraction form
   2,116,088.96/2,921,413.24 = 1,393,038.58/x
3. Step 3: Cross multiply
   2,116,088.96x = 2,921,413.24 × 1,393,038.58
4. Step 4: Simplify right side
   2,116,088.96x = 4,069,641,361,533.72
5. Step 5: Solve for x
   x = 4,069,641,361,533.72/2,116,088.96
6. Step 6: Final answer
   x = 1,923,190.12