Finding the Fourth Proportional to 2,020.88, 2,789.76 and 1,357.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020.88 : 2,789.76 = 1,357.46 : x
2. Step 2: Convert to fraction form
   2,020.88/2,789.76 = 1,357.46/x
3. Step 3: Cross multiply
   2,020.88x = 2,789.76 × 1,357.46
4. Step 4: Simplify right side
   2,020.88x = 3,786,987.61
5. Step 5: Solve for x
   x = 3,786,987.61/2,020.88
6. Step 6: Final answer
   x = 1,873.93