Finding the Fourth Proportional to 1,569.81, 2,339.16 and 1,397.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,569.81 : 2,339.16 = 1,397.55 : x
2. Step 2: Convert to fraction form
   1,569.81/2,339.16 = 1,397.55/x
3. Step 3: Cross multiply
   1,569.81x = 2,339.16 × 1,397.55
4. Step 4: Simplify right side
   1,569.81x = 3,269,093.06
5. Step 5: Solve for x
   x = 3,269,093.06/1,569.81
6. Step 6: Final answer
   x = 2,082.48