Finding the Fourth Proportional to 1,383.46, 1,908.30 and 1,088.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.46 : 1,908.30 = 1,088.62 : x
2. Step 2: Convert to fraction form
   1,383.46/1,908.30 = 1,088.62/x
3. Step 3: Cross multiply
   1,383.46x = 1,908.30 × 1,088.62
4. Step 4: Simplify right side
   1,383.46x = 2,077,413.55
5. Step 5: Solve for x
   x = 2,077,413.55/1,383.46
6. Step 6: Final answer
   x = 1,501.61