Finding the Fourth Proportional to 2,169.18, 2,993.76 and 1,329.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,169.18 : 2,993.76 = 1,329.72 : x
2. Step 2: Convert to fraction form
   2,169.18/2,993.76 = 1,329.72/x
3. Step 3: Cross multiply
   2,169.18x = 2,993.76 × 1,329.72
4. Step 4: Simplify right side
   2,169.18x = 3,980,851.32
5. Step 5: Solve for x
   x = 3,980,851.32/2,169.18
6. Step 6: Final answer
   x = 1,835.19