Finding the Fourth Proportional to 2,912.72, 4,370.88 and 1,181.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,912.72 : 4,370.88 = 1,181.34 : x
2. Step 2: Convert to fraction form
   2,912.72/4,370.88 = 1,181.34/x
3. Step 3: Cross multiply
   2,912.72x = 4,370.88 × 1,181.34
4. Step 4: Simplify right side
   2,912.72x = 5,163,495.38
5. Step 5: Solve for x
   x = 5,163,495.38/2,912.72
6. Step 6: Final answer
   x = 1,772.74