Finding the Fourth Proportional to 3,510.42, 5,264.58 and 1,866.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,510.42 : 5,264.58 = 1,866.06 : x
2. Step 2: Convert to fraction form
   3,510.42/5,264.58 = 1,866.06/x
3. Step 3: Cross multiply
   3,510.42x = 5,264.58 × 1,866.06
4. Step 4: Simplify right side
   3,510.42x = 9,824,022.15
5. Step 5: Solve for x
   x = 9,824,022.15/3,510.42
6. Step 6: Final answer
   x = 2,798.53