Finding the Fourth Proportional to 2,980.17, 4,111.98 and 1,801.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,980.17 : 4,111.98 = 1,801.22 : x
2. Step 2: Convert to fraction form
   2,980.17/4,111.98 = 1,801.22/x
3. Step 3: Cross multiply
   2,980.17x = 4,111.98 × 1,801.22
4. Step 4: Simplify right side
   2,980.17x = 7,406,553.30
5. Step 5: Solve for x
   x = 7,406,553.30/2,980.17
6. Step 6: Final answer
   x = 2,485.28