Finding the Fourth Proportional to 2,928.35, 4,041.50 and 1,920.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,928.35 : 4,041.50 = 1,920.91 : x
2. Step 2: Convert to fraction form
   2,928.35/4,041.50 = 1,920.91/x
3. Step 3: Cross multiply
   2,928.35x = 4,041.50 × 1,920.91
4. Step 4: Simplify right side
   2,928.35x = 7,763,327.95
5. Step 5: Solve for x
   x = 7,763,327.95/2,928.35
6. Step 6: Final answer
   x = 2,651.09