Finding the Fourth Proportional to 1,930.50, 2,663.76 and 1,144.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,930.50 : 2,663.76 = 1,144.74 : x
2. Step 2: Convert to fraction form
   1,930.50/2,663.76 = 1,144.74/x
3. Step 3: Cross multiply
   1,930.50x = 2,663.76 × 1,144.74
4. Step 4: Simplify right side
   1,930.50x = 3,049,312.62
5. Step 5: Solve for x
   x = 3,049,312.62/1,930.50
6. Step 6: Final answer
   x = 1,579.55