Finding the Fourth Proportional to 1,191.48, 1,642.59 and 896.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191.48 : 1,642.59 = 896.22 : x
2. Step 2: Convert to fraction form
   1,191.48/1,642.59 = 896.22/x
3. Step 3: Cross multiply
   1,191.48x = 1,642.59 × 896.22
4. Step 4: Simplify right side
   1,191.48x = 1,472,122.01
5. Step 5: Solve for x
   x = 1,472,122.01/1,191.48
6. Step 6: Final answer
   x = 1,235.54