Finding the Fourth Proportional to 1,418.04, 1,955.52 and 998.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,418.04 : 1,955.52 = 998.28 : x
2. Step 2: Convert to fraction form
   1,418.04/1,955.52 = 998.28/x
3. Step 3: Cross multiply
   1,418.04x = 1,955.52 × 998.28
4. Step 4: Simplify right side
   1,418.04x = 1,952,156.51
5. Step 5: Solve for x
   x = 1,952,156.51/1,418.04
6. Step 6: Final answer
   x = 1,376.66