Finding the Fourth Proportional to 3,076.89, 4,615.18 and 1,128.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,076.89 : 4,615.18 = 1,128.94 : x
2. Step 2: Convert to fraction form
   3,076.89/4,615.18 = 1,128.94/x
3. Step 3: Cross multiply
   3,076.89x = 4,615.18 × 1,128.94
4. Step 4: Simplify right side
   3,076.89x = 5,210,246.95
5. Step 5: Solve for x
   x = 5,210,246.95/3,076.89
6. Step 6: Final answer
   x = 1,693.35