Finding the Fourth Proportional to 1,536.56, 2,305.56 and 671.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,536.56 : 2,305.56 = 671.12 : x
2. Step 2: Convert to fraction form
   1,536.56/2,305.56 = 671.12/x
3. Step 3: Cross multiply
   1,536.56x = 2,305.56 × 671.12
4. Step 4: Simplify right side
   1,536.56x = 1,547,307.43
5. Step 5: Solve for x
   x = 1,547,307.43/1,536.56
6. Step 6: Final answer
   x = 1,006.99