Finding the Fourth Proportional to 2,808.56, 4,211.12 and 1,345.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,808.56 : 4,211.12 = 1,345.76 : x
2. Step 2: Convert to fraction form
   2,808.56/4,211.12 = 1,345.76/x
3. Step 3: Cross multiply
   2,808.56x = 4,211.12 × 1,345.76
4. Step 4: Simplify right side
   2,808.56x = 5,667,156.85
5. Step 5: Solve for x
   x = 5,667,156.85/2,808.56
6. Step 6: Final answer
   x = 2,017.82