Finding the Fourth Proportional to 5,874.96, 8,810.52 and 1,978.80

Step by Step Solution

1. Step 1: Write the proportion equation
   5,874.96 : 8,810.52 = 1,978.80 : x
2. Step 2: Convert to fraction form
   5,874.96/8,810.52 = 1,978.80/x
3. Step 3: Cross multiply
   5,874.96x = 8,810.52 × 1,978.80
4. Step 4: Simplify right side
   5,874.96x = 17,434,256.98
5. Step 5: Solve for x
   x = 17,434,256.98/5,874.96
6. Step 6: Final answer
   x = 2,967.55