Finding the Fourth Proportional to 1,019.96, 1,530.04 and 370.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,019.96 : 1,530.04 = 370.72 : x
2. Step 2: Convert to fraction form
   1,019.96/1,530.04 = 370.72/x
3. Step 3: Cross multiply
   1,019.96x = 1,530.04 × 370.72
4. Step 4: Simplify right side
   1,019.96x = 567,216.43
5. Step 5: Solve for x
   x = 567,216.43/1,019.96
6. Step 6: Final answer
   x = 556.12