Finding the Fourth Proportional to 1,920.28, 2,878.63 and 1,041.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,920.28 : 2,878.63 = 1,041.50 : x
2. Step 2: Convert to fraction form
   1,920.28/2,878.63 = 1,041.50/x
3. Step 3: Cross multiply
   1,920.28x = 2,878.63 × 1,041.50
4. Step 4: Simplify right side
   1,920.28x = 2,998,081.55
5. Step 5: Solve for x
   x = 2,998,081.55/1,920.28
6. Step 6: Final answer
   x = 1,561.27