Finding the Fourth Proportional to 1,090.38, 1,504.72 and 593.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,090.38 : 1,504.72 = 593.02 : x
2. Step 2: Convert to fraction form
   1,090.38/1,504.72 = 593.02/x
3. Step 3: Cross multiply
   1,090.38x = 1,504.72 × 593.02
4. Step 4: Simplify right side
   1,090.38x = 892,329.05
5. Step 5: Solve for x
   x = 892,329.05/1,090.38
6. Step 6: Final answer
   x = 818.37