Finding the Fourth Proportional to 2,235.78, 3,087.27 and 1,574.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,235.78 : 3,087.27 = 1,574.10 : x
2. Step 2: Convert to fraction form
   2,235.78/3,087.27 = 1,574.10/x
3. Step 3: Cross multiply
   2,235.78x = 3,087.27 × 1,574.10
4. Step 4: Simplify right side
   2,235.78x = 4,859,671.71
5. Step 5: Solve for x
   x = 4,859,671.71/2,235.78
6. Step 6: Final answer
   x = 2,173.59