Finding the Fourth Proportional to 1,346.95, 1,858.77 and 822.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,346.95 : 1,858.77 = 822.99 : x
2. Step 2: Convert to fraction form
   1,346.95/1,858.77 = 822.99/x
3. Step 3: Cross multiply
   1,346.95x = 1,858.77 × 822.99
4. Step 4: Simplify right side
   1,346.95x = 1,529,742.72
5. Step 5: Solve for x
   x = 1,529,742.72/1,346.95
6. Step 6: Final answer
   x = 1,135.71