Finding the Fourth Proportional to 2,048.76, 3,084.21 and 1,870.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,048.76 : 3,084.21 = 1,870.20 : x
2. Step 2: Convert to fraction form
   2,048.76/3,084.21 = 1,870.20/x
3. Step 3: Cross multiply
   2,048.76x = 3,084.21 × 1,870.20
4. Step 4: Simplify right side
   2,048.76x = 5,768,089.54
5. Step 5: Solve for x
   x = 5,768,089.54/2,048.76
6. Step 6: Final answer
   x = 2,815.41