Finding the Fourth Proportional to 2,978.58, 4,111.30 and 1,799.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.58 : 4,111.30 = 1,799.74 : x
2. Step 2: Convert to fraction form
   2,978.58/4,111.30 = 1,799.74/x
3. Step 3: Cross multiply
   2,978.58x = 4,111.30 × 1,799.74
4. Step 4: Simplify right side
   2,978.58x = 7,399,271.06
5. Step 5: Solve for x
   x = 7,399,271.06/2,978.58
6. Step 6: Final answer
   x = 2,484.16