Finding the Fourth Proportional to 1,346.85, 1,858.67 and 822.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,346.85 : 1,858.67 = 822.89 : x
2. Step 2: Convert to fraction form
   1,346.85/1,858.67 = 822.89/x
3. Step 3: Cross multiply
   1,346.85x = 1,858.67 × 822.89
4. Step 4: Simplify right side
   1,346.85x = 1,529,473.72
5. Step 5: Solve for x
   x = 1,529,473.72/1,346.85
6. Step 6: Final answer
   x = 1,135.59