Finding the Fourth Proportional to 2,978.58, 4,468.56 and 1,030.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.58 : 4,468.56 = 1,030.78 : x
2. Step 2: Convert to fraction form
   2,978.58/4,468.56 = 1,030.78/x
3. Step 3: Cross multiply
   2,978.58x = 4,468.56 × 1,030.78
4. Step 4: Simplify right side
   2,978.58x = 4,606,102.28
5. Step 5: Solve for x
   x = 4,606,102.28/2,978.58
6. Step 6: Final answer
   x = 1,546.41