Finding the Fourth Proportional to 3,100.84, 4,648.79 and 1,126.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,100.84 : 4,648.79 = 1,126.16 : x
2. Step 2: Convert to fraction form
   3,100.84/4,648.79 = 1,126.16/x
3. Step 3: Cross multiply
   3,100.84x = 4,648.79 × 1,126.16
4. Step 4: Simplify right side
   3,100.84x = 5,235,281.35
5. Step 5: Solve for x
   x = 5,235,281.35/3,100.84
6. Step 6: Final answer
   x = 1,688.34