Finding the Fourth Proportional to 5,899.21, 8,841.52 and 2,978.35

Step by Step Solution

1. Step 1: Write the proportion equation
   5,899.21 : 8,841.52 = 2,978.35 : x
2. Step 2: Convert to fraction form
   5,899.21/8,841.52 = 2,978.35/x
3. Step 3: Cross multiply
   5,899.21x = 8,841.52 × 2,978.35
4. Step 4: Simplify right side
   5,899.21x = 26,333,141.09
5. Step 5: Solve for x
   x = 26,333,141.09/5,899.21
6. Step 6: Final answer
   x = 4,463.84