Finding the Fourth Proportional to 2,279.59, 3,419.28 and 636.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,279.59 : 3,419.28 = 636.10 : x
2. Step 2: Convert to fraction form
   2,279.59/3,419.28 = 636.10/x
3. Step 3: Cross multiply
   2,279.59x = 3,419.28 × 636.10
4. Step 4: Simplify right side
   2,279.59x = 2,175,004.01
5. Step 5: Solve for x
   x = 2,175,004.01/2,279.59
6. Step 6: Final answer
   x = 954.12