Finding the Fourth Proportional to 3,384.59, 5,075.28 and 1,979.41

Step by Step Solution

1. Step 1: Write the proportion equation
   3,384.59 : 5,075.28 = 1,979.41 : x
2. Step 2: Convert to fraction form
   3,384.59/5,075.28 = 1,979.41/x
3. Step 3: Cross multiply
   3,384.59x = 5,075.28 × 1,979.41
4. Step 4: Simplify right side
   3,384.59x = 10,046,024.71
5. Step 5: Solve for x
   x = 10,046,024.71/3,384.59
6. Step 6: Final answer
   x = 2,968.17