Finding the Fourth Proportional to 2,074.10, 3,105.86 and 1,148.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074.10 : 3,105.86 = 1,148.63 : x
2. Step 2: Convert to fraction form
   2,074.10/3,105.86 = 1,148.63/x
3. Step 3: Cross multiply
   2,074.10x = 3,105.86 × 1,148.63
4. Step 4: Simplify right side
   2,074.10x = 3,567,485.99
5. Step 5: Solve for x
   x = 3,567,485.99/2,074.10
6. Step 6: Final answer
   x = 1,720.01