Finding the Fourth Proportional to 2,978.96, 4,468.49 and 1,031.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.96 : 4,468.49 = 1,031.21 : x
2. Step 2: Convert to fraction form
   2,978.96/4,468.49 = 1,031.21/x
3. Step 3: Cross multiply
   2,978.96x = 4,468.49 × 1,031.21
4. Step 4: Simplify right side
   2,978.96x = 4,607,965.32
5. Step 5: Solve for x
   x = 4,607,965.32/2,978.96
6. Step 6: Final answer
   x = 1,546.84