Finding the Fourth Proportional to 1,233.05, 1,701.61 and 918.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,233.05 : 1,701.61 = 918.59 : x
2. Step 2: Convert to fraction form
   1,233.05/1,701.61 = 918.59/x
3. Step 3: Cross multiply
   1,233.05x = 1,701.61 × 918.59
4. Step 4: Simplify right side
   1,233.05x = 1,563,071.13
5. Step 5: Solve for x
   x = 1,563,071.13/1,233.05
6. Step 6: Final answer
   x = 1,267.64