Finding the Fourth Proportional to 2,307.39, 3,184.38 and 1,312.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,307.39 : 3,184.38 = 1,312.71 : x
2. Step 2: Convert to fraction form
   2,307.39/3,184.38 = 1,312.71/x
3. Step 3: Cross multiply
   2,307.39x = 3,184.38 × 1,312.71
4. Step 4: Simplify right side
   2,307.39x = 4,180,167.47
5. Step 5: Solve for x
   x = 4,180,167.47/2,307.39
6. Step 6: Final answer
   x = 1,811.64