Finding the Fourth Proportional to 2,802.54, 3,868.12 and 1,870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,802.54 : 3,868.12 = 1,870.50 : x
2. Step 2: Convert to fraction form
   2,802.54/3,868.12 = 1,870.50/x
3. Step 3: Cross multiply
   2,802.54x = 3,868.12 × 1,870.50
4. Step 4: Simplify right side
   2,802.54x = 7,235,318.46
5. Step 5: Solve for x
   x = 7,235,318.46/2,802.54
6. Step 6: Final answer
   x = 2,581.70