Finding the Fourth Proportional to 1,334.18, 1,840.52 and 892.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,334.18 : 1,840.52 = 892.20 : x
2. Step 2: Convert to fraction form
   1,334.18/1,840.52 = 892.20/x
3. Step 3: Cross multiply
   1,334.18x = 1,840.52 × 892.20
4. Step 4: Simplify right side
   1,334.18x = 1,642,111.94
5. Step 5: Solve for x
   x = 1,642,111.94/1,334.18
6. Step 6: Final answer
   x = 1,230.80