Finding the Fourth Proportional to 2,035.20, 2,808.72 and 1,248.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,035.20 : 2,808.72 = 1,248.96 : x
2. Step 2: Convert to fraction form
   2,035.20/2,808.72 = 1,248.96/x
3. Step 3: Cross multiply
   2,035.20x = 2,808.72 × 1,248.96
4. Step 4: Simplify right side
   2,035.20x = 3,507,978.93
5. Step 5: Solve for x
   x = 3,507,978.93/2,035.20
6. Step 6: Final answer
   x = 1,723.65