Finding the Fourth Proportional to 2,074.52, 3,107.72 and 1,207

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074.52 : 3,107.72 = 1,207 : x
2. Step 2: Convert to fraction form
   2,074.52/3,107.72 = 1,207/x
3. Step 3: Cross multiply
   2,074.52x = 3,107.72 × 1,207
4. Step 4: Simplify right side
   2,074.52x = 3,751,018.04
5. Step 5: Solve for x
   x = 3,751,018.04/2,074.52
6. Step 6: Final answer
   x = 1,808.14