Finding the Fourth Proportional to 1,866.69, 2,574.52 and 1,642.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,866.69 : 2,574.52 = 1,642.14 : x
2. Step 2: Convert to fraction form
   1,866.69/2,574.52 = 1,642.14/x
3. Step 3: Cross multiply
   1,866.69x = 2,574.52 × 1,642.14
4. Step 4: Simplify right side
   1,866.69x = 4,227,718.17
5. Step 5: Solve for x
   x = 4,227,718.17/1,866.69
6. Step 6: Final answer
   x = 2,264.82