Finding the Fourth Proportional to 2,279.89, 3,147.03 and 1,335.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,279.89 : 3,147.03 = 1,335.98 : x
2. Step 2: Convert to fraction form
   2,279.89/3,147.03 = 1,335.98/x
3. Step 3: Cross multiply
   2,279.89x = 3,147.03 × 1,335.98
4. Step 4: Simplify right side
   2,279.89x = 4,204,362.46
5. Step 5: Solve for x
   x = 4,204,362.46/2,279.89
6. Step 6: Final answer
   x = 1,844.11