Finding the Fourth Proportional to 2,574.63, 3,553.02 and 1,395.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,574.63 : 3,553.02 = 1,395.72 : x
2. Step 2: Convert to fraction form
   2,574.63/3,553.02 = 1,395.72/x
3. Step 3: Cross multiply
   2,574.63x = 3,553.02 × 1,395.72
4. Step 4: Simplify right side
   2,574.63x = 4,959,021.07
5. Step 5: Solve for x
   x = 4,959,021.07/2,574.63
6. Step 6: Final answer
   x = 1,926.11