Finding the Fourth Proportional to 1,019.86, 1,529.88 and 370.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,019.86 : 1,529.88 = 370.64 : x
2. Step 2: Convert to fraction form
   1,019.86/1,529.88 = 370.64/x
3. Step 3: Cross multiply
   1,019.86x = 1,529.88 × 370.64
4. Step 4: Simplify right side
   1,019.86x = 567,034.72
5. Step 5: Solve for x
   x = 567,034.72/1,019.86
6. Step 6: Final answer
   x = 555.99