Finding the Fourth Proportional to 2,174.66, 3,259.47 and 1,002.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,174.66 : 3,259.47 = 1,002.21 : x
2. Step 2: Convert to fraction form
   2,174.66/3,259.47 = 1,002.21/x
3. Step 3: Cross multiply
   2,174.66x = 3,259.47 × 1,002.21
4. Step 4: Simplify right side
   2,174.66x = 3,266,667.79
5. Step 5: Solve for x
   x = 3,266,667.79/2,174.66
6. Step 6: Final answer
   x = 1,502.15