Finding the Fourth Proportional to 3,061.78, 4,591.86 and 1,330

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.78 : 4,591.86 = 1,330 : x
2. Step 2: Convert to fraction form
   3,061.78/4,591.86 = 1,330/x
3. Step 3: Cross multiply
   3,061.78x = 4,591.86 × 1,330
4. Step 4: Simplify right side
   3,061.78x = 6,107,173.80
5. Step 5: Solve for x
   x = 6,107,173.80/3,061.78
6. Step 6: Final answer
   x = 1,994.65