Finding the Fourth Proportional to 2,011.50, 3,017.72 and 624.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,011.50 : 3,017.72 = 624.76 : x
2. Step 2: Convert to fraction form
   2,011.50/3,017.72 = 624.76/x
3. Step 3: Cross multiply
   2,011.50x = 3,017.72 × 624.76
4. Step 4: Simplify right side
   2,011.50x = 1,885,347.62
5. Step 5: Solve for x
   x = 1,885,347.62/2,011.50
6. Step 6: Final answer
   x = 937.29