Finding the Fourth Proportional to 2,307.66, 3,184.83 and 1,312.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,307.66 : 3,184.83 = 1,312.62 : x
2. Step 2: Convert to fraction form
   2,307.66/3,184.83 = 1,312.62/x
3. Step 3: Cross multiply
   2,307.66x = 3,184.83 × 1,312.62
4. Step 4: Simplify right side
   2,307.66x = 4,180,471.55
5. Step 5: Solve for x
   x = 4,180,471.55/2,307.66
6. Step 6: Final answer
   x = 1,811.56