Finding the Fourth Proportional to 1,114.94, 1,672.31 and 874.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,114.94 : 1,672.31 = 874.37 : x
2. Step 2: Convert to fraction form
   1,114.94/1,672.31 = 874.37/x
3. Step 3: Cross multiply
   1,114.94x = 1,672.31 × 874.37
4. Step 4: Simplify right side
   1,114.94x = 1,462,217.69
5. Step 5: Solve for x
   x = 1,462,217.69/1,114.94
6. Step 6: Final answer
   x = 1,311.48