Finding the Fourth Proportional to 3,458.42, 4,772.59 and 1,886.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,458.42 : 4,772.59 = 1,886.61 : x
2. Step 2: Convert to fraction form
   3,458.42/4,772.59 = 1,886.61/x
3. Step 3: Cross multiply
   3,458.42x = 4,772.59 × 1,886.61
4. Step 4: Simplify right side
   3,458.42x = 9,004,016.02
5. Step 5: Solve for x
   x = 9,004,016.02/3,458.42
6. Step 6: Final answer
   x = 2,603.51