Finding the Fourth Proportional to 3,105.84, 4,663.35 and 1,260.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,105.84 : 4,663.35 = 1,260.55 : x
2. Step 2: Convert to fraction form
   3,105.84/4,663.35 = 1,260.55/x
3. Step 3: Cross multiply
   3,105.84x = 4,663.35 × 1,260.55
4. Step 4: Simplify right side
   3,105.84x = 5,878,385.84
5. Step 5: Solve for x
   x = 5,878,385.84/3,105.84
6. Step 6: Final answer
   x = 1,892.69