Finding the Fourth Proportional to 2,174.70, 3,259.52 and 1,079.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,174.70 : 3,259.52 = 1,079.76 : x
2. Step 2: Convert to fraction form
   2,174.70/3,259.52 = 1,079.76/x
3. Step 3: Cross multiply
   2,174.70x = 3,259.52 × 1,079.76
4. Step 4: Simplify right side
   2,174.70x = 3,519,499.32
5. Step 5: Solve for x
   x = 3,519,499.32/2,174.70
6. Step 6: Final answer
   x = 1,618.38