Finding the Fourth Proportional to 2,770.12, 3,822.50 and 1,528.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,770.12 : 3,822.50 = 1,528.04 : x
2. Step 2: Convert to fraction form
   2,770.12/3,822.50 = 1,528.04/x
3. Step 3: Cross multiply
   2,770.12x = 3,822.50 × 1,528.04
4. Step 4: Simplify right side
   2,770.12x = 5,840,932.90
5. Step 5: Solve for x
   x = 5,840,932.90/2,770.12
6. Step 6: Final answer
   x = 2,108.55