Finding the Fourth Proportional to 2,084.22, 2,870.10 and 1,863.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,084.22 : 2,870.10 = 1,863.09 : x
2. Step 2: Convert to fraction form
   2,084.22/2,870.10 = 1,863.09/x
3. Step 3: Cross multiply
   2,084.22x = 2,870.10 × 1,863.09
4. Step 4: Simplify right side
   2,084.22x = 5,347,254.61
5. Step 5: Solve for x
   x = 5,347,254.61/2,084.22
6. Step 6: Final answer
   x = 2,565.59