Finding the Fourth Proportional to 2,159.48, 2,978.88 and 1,496.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,159.48 : 2,978.88 = 1,496.72 : x
2. Step 2: Convert to fraction form
   2,159.48/2,978.88 = 1,496.72/x
3. Step 3: Cross multiply
   2,159.48x = 2,978.88 × 1,496.72
4. Step 4: Simplify right side
   2,159.48x = 4,458,549.27
5. Step 5: Solve for x
   x = 4,458,549.27/2,159.48
6. Step 6: Final answer
   x = 2,064.64