Finding the Fourth Proportional to 1,573.67, 2,357.17 and 1,279.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,573.67 : 2,357.17 = 1,279.82 : x
2. Step 2: Convert to fraction form
   1,573.67/2,357.17 = 1,279.82/x
3. Step 3: Cross multiply
   1,573.67x = 2,357.17 × 1,279.82
4. Step 4: Simplify right side
   1,573.67x = 3,016,753.31
5. Step 5: Solve for x
   x = 3,016,753.31/1,573.67
6. Step 6: Final answer
   x = 1,917.02