Finding the Fourth Proportional to 1,141.93, 1,710.96 and 620.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,141.93 : 1,710.96 = 620.74 : x
2. Step 2: Convert to fraction form
   1,141.93/1,710.96 = 620.74/x
3. Step 3: Cross multiply
   1,141.93x = 1,710.96 × 620.74
4. Step 4: Simplify right side
   1,141.93x = 1,062,061.31
5. Step 5: Solve for x
   x = 1,062,061.31/1,141.93
6. Step 6: Final answer
   x = 930.06