Finding the Fourth Proportional to 2,377.88, 3,565.91 and 817.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,377.88 : 3,565.91 = 817.59 : x
2. Step 2: Convert to fraction form
   2,377.88/3,565.91 = 817.59/x
3. Step 3: Cross multiply
   2,377.88x = 3,565.91 × 817.59
4. Step 4: Simplify right side
   2,377.88x = 2,915,448.27
5. Step 5: Solve for x
   x = 2,915,448.27/2,377.88
6. Step 6: Final answer
   x = 1,226.07