Finding the Fourth Proportional to 2,478.18, 3,709.52 and 1,379.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,478.18 : 3,709.52 = 1,379.02 : x
2. Step 2: Convert to fraction form
   2,478.18/3,709.52 = 1,379.02/x
3. Step 3: Cross multiply
   2,478.18x = 3,709.52 × 1,379.02
4. Step 4: Simplify right side
   2,478.18x = 5,115,502.27
5. Step 5: Solve for x
   x = 5,115,502.27/2,478.18
6. Step 6: Final answer
   x = 2,064.22