Finding the Fourth Proportional to 1,340.53, 1,848.20 and 867.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,340.53 : 1,848.20 = 867.59 : x
2. Step 2: Convert to fraction form
   1,340.53/1,848.20 = 867.59/x
3. Step 3: Cross multiply
   1,340.53x = 1,848.20 × 867.59
4. Step 4: Simplify right side
   1,340.53x = 1,603,472.77
5. Step 5: Solve for x
   x = 1,603,472.77/1,340.53
6. Step 6: Final answer
   x = 1,196.15