Finding the Fourth Proportional to 2,105.06, 3,157.63 and 1,065.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.06 : 3,157.63 = 1,065.56 : x
2. Step 2: Convert to fraction form
   2,105.06/3,157.63 = 1,065.56/x
3. Step 3: Cross multiply
   2,105.06x = 3,157.63 × 1,065.56
4. Step 4: Simplify right side
   2,105.06x = 3,364,631.76
5. Step 5: Solve for x
   x = 3,364,631.76/2,105.06
6. Step 6: Final answer
   x = 1,598.35