Finding the Fourth Proportional to 1,674.10, 2,510.83 and 578.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,674.10 : 2,510.83 = 578.47 : x
2. Step 2: Convert to fraction form
   1,674.10/2,510.83 = 578.47/x
3. Step 3: Cross multiply
   1,674.10x = 2,510.83 × 578.47
4. Step 4: Simplify right side
   1,674.10x = 1,452,439.83
5. Step 5: Solve for x
   x = 1,452,439.83/1,674.10
6. Step 6: Final answer
   x = 867.59