Finding the Fourth Proportional to 3,434.89, 5,151.93 and 1,126.39

Step by Step Solution

1. Step 1: Write the proportion equation
   3,434.89 : 5,151.93 = 1,126.39 : x
2. Step 2: Convert to fraction form
   3,434.89/5,151.93 = 1,126.39/x
3. Step 3: Cross multiply
   3,434.89x = 5,151.93 × 1,126.39
4. Step 4: Simplify right side
   3,434.89x = 5,803,082.43
5. Step 5: Solve for x
   x = 5,803,082.43/3,434.89
6. Step 6: Final answer
   x = 1,689.45