Finding the Fourth Proportional to 1,043.30, 1,562.55 and 1,019.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,043.30 : 1,562.55 = 1,019.30 : x
2. Step 2: Convert to fraction form
   1,043.30/1,562.55 = 1,019.30/x
3. Step 3: Cross multiply
   1,043.30x = 1,562.55 × 1,019.30
4. Step 4: Simplify right side
   1,043.30x = 1,592,707.22
5. Step 5: Solve for x
   x = 1,592,707.22/1,043.30
6. Step 6: Final answer
   x = 1,526.61