Finding the Fourth Proportional to 1,991.17, 2,998.32 and 1,474.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,991.17 : 2,998.32 = 1,474.82 : x
2. Step 2: Convert to fraction form
   1,991.17/2,998.32 = 1,474.82/x
3. Step 3: Cross multiply
   1,991.17x = 2,998.32 × 1,474.82
4. Step 4: Simplify right side
   1,991.17x = 4,421,989.89
5. Step 5: Solve for x
   x = 4,421,989.89/1,991.17
6. Step 6: Final answer
   x = 2,220.80