Finding the Fourth Proportional to 1,517.78, 2,095.70 and 1,185.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,517.78 : 2,095.70 = 1,185.62 : x
2. Step 2: Convert to fraction form
   1,517.78/2,095.70 = 1,185.62/x
3. Step 3: Cross multiply
   1,517.78x = 2,095.70 × 1,185.62
4. Step 4: Simplify right side
   1,517.78x = 2,484,703.83
5. Step 5: Solve for x
   x = 2,484,703.83/1,517.78
6. Step 6: Final answer
   x = 1,637.06