Finding the Fourth Proportional to 2,102.47, 3,155.28 and 1,696.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,102.47 : 3,155.28 = 1,696.48 : x
2. Step 2: Convert to fraction form
   2,102.47/3,155.28 = 1,696.48/x
3. Step 3: Cross multiply
   2,102.47x = 3,155.28 × 1,696.48
4. Step 4: Simplify right side
   2,102.47x = 5,352,869.41
5. Step 5: Solve for x
   x = 5,352,869.41/2,102.47
6. Step 6: Final answer
   x = 2,545.99