Finding the Fourth Proportional to 1,336.48, 1,845.18 and 917.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,336.48 : 1,845.18 = 917.54 : x
2. Step 2: Convert to fraction form
   1,336.48/1,845.18 = 917.54/x
3. Step 3: Cross multiply
   1,336.48x = 1,845.18 × 917.54
4. Step 4: Simplify right side
   1,336.48x = 1,693,026.46
5. Step 5: Solve for x
   x = 1,693,026.46/1,336.48
6. Step 6: Final answer
   x = 1,266.78