Finding the Fourth Proportional to 1,353.93, 1,867.92 and 822.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,353.93 : 1,867.92 = 822.47 : x
2. Step 2: Convert to fraction form
   1,353.93/1,867.92 = 822.47/x
3. Step 3: Cross multiply
   1,353.93x = 1,867.92 × 822.47
4. Step 4: Simplify right side
   1,353.93x = 1,536,298.82
5. Step 5: Solve for x
   x = 1,536,298.82/1,353.93
6. Step 6: Final answer
   x = 1,134.70