Finding the Fourth Proportional to 1,961.72, 2,707.41 and 1,133.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,961.72 : 2,707.41 = 1,133.72 : x
2. Step 2: Convert to fraction form
   1,961.72/2,707.41 = 1,133.72/x
3. Step 3: Cross multiply
   1,961.72x = 2,707.41 × 1,133.72
4. Step 4: Simplify right side
   1,961.72x = 3,069,444.32
5. Step 5: Solve for x
   x = 3,069,444.32/1,961.72
6. Step 6: Final answer
   x = 1,564.67