Finding the Fourth Proportional to 1,871.57, 2,582.88 and 1,074.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,871.57 : 2,582.88 = 1,074.95 : x
2. Step 2: Convert to fraction form
   1,871.57/2,582.88 = 1,074.95/x
3. Step 3: Cross multiply
   1,871.57x = 2,582.88 × 1,074.95
4. Step 4: Simplify right side
   1,871.57x = 2,776,466.86
5. Step 5: Solve for x
   x = 2,776,466.86/1,871.57
6. Step 6: Final answer
   x = 1,483.50