Finding the Fourth Proportional to 2,279.49, 3,419.59 and 740.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,279.49 : 3,419.59 = 740.13 : x
2. Step 2: Convert to fraction form
   2,279.49/3,419.59 = 740.13/x
3. Step 3: Cross multiply
   2,279.49x = 3,419.59 × 740.13
4. Step 4: Simplify right side
   2,279.49x = 2,530,941.15
5. Step 5: Solve for x
   x = 2,530,941.15/2,279.49
6. Step 6: Final answer
   x = 1,110.31