Finding the Fourth Proportional to 3,061.98, 4,224.52 and 1,866.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.98 : 4,224.52 = 1,866.86 : x
2. Step 2: Convert to fraction form
   3,061.98/4,224.52 = 1,866.86/x
3. Step 3: Cross multiply
   3,061.98x = 4,224.52 × 1,866.86
4. Step 4: Simplify right side
   3,061.98x = 7,886,587.41
5. Step 5: Solve for x
   x = 7,886,587.41/3,061.98
6. Step 6: Final answer
   x = 2,575.65