Finding the Fourth Proportional to 1,010.94, 1,514.76 and 620.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010.94 : 1,514.76 = 620.52 : x
2. Step 2: Convert to fraction form
   1,010.94/1,514.76 = 620.52/x
3. Step 3: Cross multiply
   1,010.94x = 1,514.76 × 620.52
4. Step 4: Simplify right side
   1,010.94x = 939,938.88
5. Step 5: Solve for x
   x = 939,938.88/1,010.94
6. Step 6: Final answer
   x = 929.77