Finding the Fourth Proportional to 2,978.60, 4,468.56 and 1,030.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.60 : 4,468.56 = 1,030.79 : x
2. Step 2: Convert to fraction form
   2,978.60/4,468.56 = 1,030.79/x
3. Step 3: Cross multiply
   2,978.60x = 4,468.56 × 1,030.79
4. Step 4: Simplify right side
   2,978.60x = 4,606,124.62
5. Step 5: Solve for x
   x = 4,606,124.62/2,978.60
6. Step 6: Final answer
   x = 1,546.41