Finding the Fourth Proportional to 2,986.34, 4,478.42 and 1,137.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,986.34 : 4,478.42 = 1,137.94 : x
2. Step 2: Convert to fraction form
   2,986.34/4,478.42 = 1,137.94/x
3. Step 3: Cross multiply
   2,986.34x = 4,478.42 × 1,137.94
4. Step 4: Simplify right side
   2,986.34x = 5,096,173.25
5. Step 5: Solve for x
   x = 5,096,173.25/2,986.34
6. Step 6: Final answer
   x = 1,706.49