Finding the Fourth Proportional to 1,036.56, 1,430.49 and 705.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,036.56 : 1,430.49 = 705.15 : x
2. Step 2: Convert to fraction form
   1,036.56/1,430.49 = 705.15/x
3. Step 3: Cross multiply
   1,036.56x = 1,430.49 × 705.15
4. Step 4: Simplify right side
   1,036.56x = 1,008,710.02
5. Step 5: Solve for x
   x = 1,008,710.02/1,036.56
6. Step 6: Final answer
   x = 973.13