Finding the Fourth Proportional to 5,412.25, 7,468.91 and 2,928.25

Step by Step Solution

1. Step 1: Write the proportion equation
   5,412.25 : 7,468.91 = 2,928.25 : x
2. Step 2: Convert to fraction form
   5,412.25/7,468.91 = 2,928.25/x
3. Step 3: Cross multiply
   5,412.25x = 7,468.91 × 2,928.25
4. Step 4: Simplify right side
   5,412.25x = 21,870,835.71
5. Step 5: Solve for x
   x = 21,870,835.71/5,412.25
6. Step 6: Final answer
   x = 4,040.99