Finding the Fourth Proportional to 3,106.56, 4,658.72 and 1,054.08

Step by Step Solution

1. Step 1: Write the proportion equation
   3,106.56 : 4,658.72 = 1,054.08 : x
2. Step 2: Convert to fraction form
   3,106.56/4,658.72 = 1,054.08/x
3. Step 3: Cross multiply
   3,106.56x = 4,658.72 × 1,054.08
4. Step 4: Simplify right side
   3,106.56x = 4,910,663.58
5. Step 5: Solve for x
   x = 4,910,663.58/3,106.56
6. Step 6: Final answer
   x = 1,580.74