Finding the Fourth Proportional to 1,404.45, 2,107.17 and 746.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.45 : 2,107.17 = 746.28 : x
2. Step 2: Convert to fraction form
   1,404.45/2,107.17 = 746.28/x
3. Step 3: Cross multiply
   1,404.45x = 2,107.17 × 746.28
4. Step 4: Simplify right side
   1,404.45x = 1,572,538.83
5. Step 5: Solve for x
   x = 1,572,538.83/1,404.45
6. Step 6: Final answer
   x = 1,119.68