Finding the Fourth Proportional to 2,159.32, 2,980.20 and 1,373.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,159.32 : 2,980.20 = 1,373.62 : x
2. Step 2: Convert to fraction form
   2,159.32/2,980.20 = 1,373.62/x
3. Step 3: Cross multiply
   2,159.32x = 2,980.20 × 1,373.62
4. Step 4: Simplify right side
   2,159.32x = 4,093,662.32
5. Step 5: Solve for x
   x = 4,093,662.32/2,159.32
6. Step 6: Final answer
   x = 1,895.81