Finding the Fourth Proportional to 1,036.82, 1,430.76 and 571.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,036.82 : 1,430.76 = 571.10 : x
2. Step 2: Convert to fraction form
   1,036.82/1,430.76 = 571.10/x
3. Step 3: Cross multiply
   1,036.82x = 1,430.76 × 571.10
4. Step 4: Simplify right side
   1,036.82x = 817,107.04
5. Step 5: Solve for x
   x = 817,107.04/1,036.82
6. Step 6: Final answer
   x = 788.09