Finding the Fourth Proportional to 3,510.23, 5,266.17 and 1,866.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,510.23 : 5,266.17 = 1,866.42 : x
2. Step 2: Convert to fraction form
   3,510.23/5,266.17 = 1,866.42/x
3. Step 3: Cross multiply
   3,510.23x = 5,266.17 × 1,866.42
4. Step 4: Simplify right side
   3,510.23x = 9,828,885.01
5. Step 5: Solve for x
   x = 9,828,885.01/3,510.23
6. Step 6: Final answer
   x = 2,800.07