Finding the Fourth Proportional to 2,071.74, 3,104.68 and 1,147.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.74 : 3,104.68 = 1,147.72 : x
2. Step 2: Convert to fraction form
   2,071.74/3,104.68 = 1,147.72/x
3. Step 3: Cross multiply
   2,071.74x = 3,104.68 × 1,147.72
4. Step 4: Simplify right side
   2,071.74x = 3,563,303.33
5. Step 5: Solve for x
   x = 3,563,303.33/2,071.74
6. Step 6: Final answer
   x = 1,719.96