Finding the Fourth Proportional to 1,018.52, 1,526.82 and 369.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.52 : 1,526.82 = 369.10 : x
2. Step 2: Convert to fraction form
   1,018.52/1,526.82 = 369.10/x
3. Step 3: Cross multiply
   1,018.52x = 1,526.82 × 369.10
4. Step 4: Simplify right side
   1,018.52x = 563,549.26
5. Step 5: Solve for x
   x = 563,549.26/1,018.52
6. Step 6: Final answer
   x = 553.30