Finding the Fourth Proportional to 2,279.37, 3,143.72 and 1,719.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,279.37 : 3,143.72 = 1,719.93 : x
2. Step 2: Convert to fraction form
   2,279.37/3,143.72 = 1,719.93/x
3. Step 3: Cross multiply
   2,279.37x = 3,143.72 × 1,719.93
4. Step 4: Simplify right side
   2,279.37x = 5,406,969.74
5. Step 5: Solve for x
   x = 5,406,969.74/2,279.37
6. Step 6: Final answer
   x = 2,372.13