Finding the Fourth Proportional to 2,333.15, 3,499.67 and 578.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,333.15 : 3,499.67 = 578.15 : x
2. Step 2: Convert to fraction form
   2,333.15/3,499.67 = 578.15/x
3. Step 3: Cross multiply
   2,333.15x = 3,499.67 × 578.15
4. Step 4: Simplify right side
   2,333.15x = 2,023,316.71
5. Step 5: Solve for x
   x = 2,023,316.71/2,333.15
6. Step 6: Final answer
   x = 867.21