Finding the Fourth Proportional to 1,090.50, 1,633.69 and 844.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,090.50 : 1,633.69 = 844.13 : x
2. Step 2: Convert to fraction form
   1,090.50/1,633.69 = 844.13/x
3. Step 3: Cross multiply
   1,090.50x = 1,633.69 × 844.13
4. Step 4: Simplify right side
   1,090.50x = 1,379,036.46
5. Step 5: Solve for x
   x = 1,379,036.46/1,090.50
6. Step 6: Final answer
   x = 1,264.59