Finding the Fourth Proportional to 1,980.88, 2,972.18 and 941.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,980.88 : 2,972.18 = 941.61 : x
2. Step 2: Convert to fraction form
   1,980.88/2,972.18 = 941.61/x
3. Step 3: Cross multiply
   1,980.88x = 2,972.18 × 941.61
4. Step 4: Simplify right side
   1,980.88x = 2,798,644.38
5. Step 5: Solve for x
   x = 2,798,644.38/1,980.88
6. Step 6: Final answer
   x = 1,412.83