Finding the Fourth Proportional to 1,648.69, 2,472.76 and 1,160.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,648.69 : 2,472.76 = 1,160.26 : x
2. Step 2: Convert to fraction form
   1,648.69/2,472.76 = 1,160.26/x
3. Step 3: Cross multiply
   1,648.69x = 2,472.76 × 1,160.26
4. Step 4: Simplify right side
   1,648.69x = 2,869,039.79
5. Step 5: Solve for x
   x = 2,869,039.79/1,648.69
6. Step 6: Final answer
   x = 1,740.20