Finding the Fourth Proportional to 2,379.02, 3,565.89 and 916.97

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.02 : 3,565.89 = 916.97 : x
2. Step 2: Convert to fraction form
   2,379.02/3,565.89 = 916.97/x
3. Step 3: Cross multiply
   2,379.02x = 3,565.89 × 916.97
4. Step 4: Simplify right side
   2,379.02x = 3,269,796.32
5. Step 5: Solve for x
   x = 3,269,796.32/2,379.02
6. Step 6: Final answer
   x = 1,374.43