Finding the Fourth Proportional to 1,870.11, 2,582.46 and 1,208.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.11 : 2,582.46 = 1,208.10 : x
2. Step 2: Convert to fraction form
   1,870.11/2,582.46 = 1,208.10/x
3. Step 3: Cross multiply
   1,870.11x = 2,582.46 × 1,208.10
4. Step 4: Simplify right side
   1,870.11x = 3,119,869.93
5. Step 5: Solve for x
   x = 3,119,869.93/1,870.11
6. Step 6: Final answer
   x = 1,668.28