Finding the Fourth Proportional to 2,808.52, 4,215.38 and 1,422.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,808.52 : 4,215.38 = 1,422.84 : x
2. Step 2: Convert to fraction form
   2,808.52/4,215.38 = 1,422.84/x
3. Step 3: Cross multiply
   2,808.52x = 4,215.38 × 1,422.84
4. Step 4: Simplify right side
   2,808.52x = 5,997,811.28
5. Step 5: Solve for x
   x = 5,997,811.28/2,808.52
6. Step 6: Final answer
   x = 2,135.58