Finding the Fourth Proportional to 1,134.56, 1,701.56 and 641.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,134.56 : 1,701.56 = 641.18 : x
2. Step 2: Convert to fraction form
   1,134.56/1,701.56 = 641.18/x
3. Step 3: Cross multiply
   1,134.56x = 1,701.56 × 641.18
4. Step 4: Simplify right side
   1,134.56x = 1,091,012.10
5. Step 5: Solve for x
   x = 1,091,012.10/1,134.56
6. Step 6: Final answer
   x = 961.61