Finding the Fourth Proportional to 2,078.56, 3,115.52 and 924.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.56 : 3,115.52 = 924.16 : x
2. Step 2: Convert to fraction form
   2,078.56/3,115.52 = 924.16/x
3. Step 3: Cross multiply
   2,078.56x = 3,115.52 × 924.16
4. Step 4: Simplify right side
   2,078.56x = 2,879,238.96
5. Step 5: Solve for x
   x = 2,879,238.96/2,078.56
6. Step 6: Final answer
   x = 1,385.21