Finding the Fourth Proportional to 3,145.86, 4,341.35 and 1,729.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,145.86 : 4,341.35 = 1,729.53 : x
2. Step 2: Convert to fraction form
   3,145.86/4,341.35 = 1,729.53/x
3. Step 3: Cross multiply
   3,145.86x = 4,341.35 × 1,729.53
4. Step 4: Simplify right side
   3,145.86x = 7,508,499.39
5. Step 5: Solve for x
   x = 7,508,499.39/3,145.86
6. Step 6: Final answer
   x = 2,386.79