Finding the Fourth Proportional to 2,476.34, 3,415.02 and 1,679.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,476.34 : 3,415.02 = 1,679.78 : x
2. Step 2: Convert to fraction form
   2,476.34/3,415.02 = 1,679.78/x
3. Step 3: Cross multiply
   2,476.34x = 3,415.02 × 1,679.78
4. Step 4: Simplify right side
   2,476.34x = 5,736,482.30
5. Step 5: Solve for x
   x = 5,736,482.30/2,476.34
6. Step 6: Final answer
   x = 2,316.52