Finding the Fourth Proportional to 1,141.48, 1,710.83 and 620.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,141.48 : 1,710.83 = 620.24 : x
2. Step 2: Convert to fraction form
   1,141.48/1,710.83 = 620.24/x
3. Step 3: Cross multiply
   1,141.48x = 1,710.83 × 620.24
4. Step 4: Simplify right side
   1,141.48x = 1,061,125.20
5. Step 5: Solve for x
   x = 1,061,125.20/1,141.48
6. Step 6: Final answer
   x = 929.60