Finding the Fourth Proportional to 1,930.95, 2,664.70 and 1,144.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,930.95 : 2,664.70 = 1,144.98 : x
2. Step 2: Convert to fraction form
   1,930.95/2,664.70 = 1,144.98/x
3. Step 3: Cross multiply
   1,930.95x = 2,664.70 × 1,144.98
4. Step 4: Simplify right side
   1,930.95x = 3,051,025.34
5. Step 5: Solve for x
   x = 3,051,025.34/1,930.95
6. Step 6: Final answer
   x = 1,580.06