Finding the Fourth Proportional to 2,770.48, 4,156.82 and 1,127.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,770.48 : 4,156.82 = 1,127.15 : x
2. Step 2: Convert to fraction form
   2,770.48/4,156.82 = 1,127.15/x
3. Step 3: Cross multiply
   2,770.48x = 4,156.82 × 1,127.15
4. Step 4: Simplify right side
   2,770.48x = 4,685,359.66
5. Step 5: Solve for x
   x = 4,685,359.66/2,770.48
6. Step 6: Final answer
   x = 1,691.17