Finding the Fourth Proportional to 2,574.34, 3,552.56 and 1,395.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,574.34 : 3,552.56 = 1,395.40 : x
2. Step 2: Convert to fraction form
   2,574.34/3,552.56 = 1,395.40/x
3. Step 3: Cross multiply
   2,574.34x = 3,552.56 × 1,395.40
4. Step 4: Simplify right side
   2,574.34x = 4,957,242.22
5. Step 5: Solve for x
   x = 4,957,242.22/2,574.34
6. Step 6: Final answer
   x = 1,925.64