Finding the Fourth Proportional to 2,307.38, 3,184.28 and 1,312.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,307.38 : 3,184.28 = 1,312.83 : x
2. Step 2: Convert to fraction form
   2,307.38/3,184.28 = 1,312.83/x
3. Step 3: Cross multiply
   2,307.38x = 3,184.28 × 1,312.83
4. Step 4: Simplify right side
   2,307.38x = 4,180,418.31
5. Step 5: Solve for x
   x = 4,180,418.31/2,307.38
6. Step 6: Final answer
   x = 1,811.76