Finding the Fourth Proportional to 2,307.56, 3,184.41 and 1,312.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,307.56 : 3,184.41 = 1,312.77 : x
2. Step 2: Convert to fraction form
   2,307.56/3,184.41 = 1,312.77/x
3. Step 3: Cross multiply
   2,307.56x = 3,184.41 × 1,312.77
4. Step 4: Simplify right side
   2,307.56x = 4,180,414.78
5. Step 5: Solve for x
   x = 4,180,414.78/2,307.56
6. Step 6: Final answer
   x = 1,811.62