Finding the Fourth Proportional to 2,173.57, 3,259.14 and 940.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,173.57 : 3,259.14 = 940.21 : x
2. Step 2: Convert to fraction form
   2,173.57/3,259.14 = 940.21/x
3. Step 3: Cross multiply
   2,173.57x = 3,259.14 × 940.21
4. Step 4: Simplify right side
   2,173.57x = 3,064,276.02
5. Step 5: Solve for x
   x = 3,064,276.02/2,173.57
6. Step 6: Final answer
   x = 1,409.79