Finding the Fourth Proportional to 2,379.56, 3,567.81 and 993.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.56 : 3,567.81 = 993.86 : x
2. Step 2: Convert to fraction form
   2,379.56/3,567.81 = 993.86/x
3. Step 3: Cross multiply
   2,379.56x = 3,567.81 × 993.86
4. Step 4: Simplify right side
   2,379.56x = 3,545,903.65
5. Step 5: Solve for x
   x = 3,545,903.65/2,379.56
6. Step 6: Final answer
   x = 1,490.15