Finding the Fourth Proportional to 1,674.94, 2,312.18 and 1,077.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,674.94 : 2,312.18 = 1,077.72 : x
2. Step 2: Convert to fraction form
   1,674.94/2,312.18 = 1,077.72/x
3. Step 3: Cross multiply
   1,674.94x = 2,312.18 × 1,077.72
4. Step 4: Simplify right side
   1,674.94x = 2,491,872.61
5. Step 5: Solve for x
   x = 2,491,872.61/1,674.94
6. Step 6: Final answer
   x = 1,487.74