Finding the Fourth Proportional to 2,379.56, 3,569.42 and 2,109.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.56 : 3,569.42 = 2,109.02 : x
2. Step 2: Convert to fraction form
   2,379.56/3,569.42 = 2,109.02/x
3. Step 3: Cross multiply
   2,379.56x = 3,569.42 × 2,109.02
4. Step 4: Simplify right side
   2,379.56x = 7,527,978.17
5. Step 5: Solve for x
   x = 7,527,978.17/2,379.56
6. Step 6: Final answer
   x = 3,163.60