Finding the Fourth Proportional to 1,095.96, 1,637.17 and 986.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095.96 : 1,637.17 = 986.10 : x
2. Step 2: Convert to fraction form
   1,095.96/1,637.17 = 986.10/x
3. Step 3: Cross multiply
   1,095.96x = 1,637.17 × 986.10
4. Step 4: Simplify right side
   1,095.96x = 1,614,413.34
5. Step 5: Solve for x
   x = 1,614,413.34/1,095.96
6. Step 6: Final answer
   x = 1,473.06