Finding the Fourth Proportional to 1,080.01, 1,490.38 and 607.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,080.01 : 1,490.38 = 607.96 : x
2. Step 2: Convert to fraction form
   1,080.01/1,490.38 = 607.96/x
3. Step 3: Cross multiply
   1,080.01x = 1,490.38 × 607.96
4. Step 4: Simplify right side
   1,080.01x = 906,091.42
5. Step 5: Solve for x
   x = 906,091.42/1,080.01
6. Step 6: Final answer
   x = 838.97