Finding the Fourth Proportional to 1,346.52, 1,858.86 and 822.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,346.52 : 1,858.86 = 822.72 : x
2. Step 2: Convert to fraction form
   1,346.52/1,858.86 = 822.72/x
3. Step 3: Cross multiply
   1,346.52x = 1,858.86 × 822.72
4. Step 4: Simplify right side
   1,346.52x = 1,529,321.30
5. Step 5: Solve for x
   x = 1,529,321.30/1,346.52
6. Step 6: Final answer
   x = 1,135.76