Finding the Fourth Proportional to 6,903.72, 10,355.90 and 1,974.06

Step by Step Solution

1. Step 1: Write the proportion equation
   6,903.72 : 10,355.90 = 1,974.06 : x
2. Step 2: Convert to fraction form
   6,903.72/10,355.90 = 1,974.06/x
3. Step 3: Cross multiply
   6,903.72x = 10,355.90 × 1,974.06
4. Step 4: Simplify right side
   6,903.72x = 20,443,167.95
5. Step 5: Solve for x
   x = 20,443,167.95/6,903.72
6. Step 6: Final answer
   x = 2,961.18