Finding the Fourth Proportional to 1,565.58, 2,348.69 and 786.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,565.58 : 2,348.69 = 786.09 : x
2. Step 2: Convert to fraction form
   1,565.58/2,348.69 = 786.09/x
3. Step 3: Cross multiply
   1,565.58x = 2,348.69 × 786.09
4. Step 4: Simplify right side
   1,565.58x = 1,846,281.72
5. Step 5: Solve for x
   x = 1,846,281.72/1,565.58
6. Step 6: Final answer
   x = 1,179.30