Finding the Fourth Proportional to 2,405.66, 3,602.26 and 2,061.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,405.66 : 3,602.26 = 2,061.20 : x
2. Step 2: Convert to fraction form
   2,405.66/3,602.26 = 2,061.20/x
3. Step 3: Cross multiply
   2,405.66x = 3,602.26 × 2,061.20
4. Step 4: Simplify right side
   2,405.66x = 7,424,978.31
5. Step 5: Solve for x
   x = 7,424,978.31/2,405.66
6. Step 6: Final answer
   x = 3,086.46