Finding the Fourth Proportional to 1,674.98, 2,311.89 and 1,077.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,674.98 : 2,311.89 = 1,077.87 : x
2. Step 2: Convert to fraction form
   1,674.98/2,311.89 = 1,077.87/x
3. Step 3: Cross multiply
   1,674.98x = 2,311.89 × 1,077.87
4. Step 4: Simplify right side
   1,674.98x = 2,491,927.56
5. Step 5: Solve for x
   x = 2,491,927.56/1,674.98
6. Step 6: Final answer
   x = 1,487.74