Finding the Fourth Proportional to 1,674.93, 2,510.72 and 578.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,674.93 : 2,510.72 = 578.59 : x
2. Step 2: Convert to fraction form
   1,674.93/2,510.72 = 578.59/x
3. Step 3: Cross multiply
   1,674.93x = 2,510.72 × 578.59
4. Step 4: Simplify right side
   1,674.93x = 1,452,677.48
5. Step 5: Solve for x
   x = 1,452,677.48/1,674.93
6. Step 6: Final answer
   x = 867.31