Finding the Fourth Proportional to 2,187.10, 3,020.32 and 1,870.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187.10 : 3,020.32 = 1,870.52 : x
2. Step 2: Convert to fraction form
   2,187.10/3,020.32 = 1,870.52/x
3. Step 3: Cross multiply
   2,187.10x = 3,020.32 × 1,870.52
4. Step 4: Simplify right side
   2,187.10x = 5,649,568.97
5. Step 5: Solve for x
   x = 5,649,568.97/2,187.10
6. Step 6: Final answer
   x = 2,583.13