Finding the Fourth Proportional to 2,574.41, 3,858.58 and 929.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,574.41 : 3,858.58 = 929.71 : x
2. Step 2: Convert to fraction form
   2,574.41/3,858.58 = 929.71/x
3. Step 3: Cross multiply
   2,574.41x = 3,858.58 × 929.71
4. Step 4: Simplify right side
   2,574.41x = 3,587,336.47
5. Step 5: Solve for x
   x = 3,587,336.47/2,574.41
6. Step 6: Final answer
   x = 1,393.46