Finding the Fourth Proportional to 1,404.34, 2,108.34 and 1,079.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.34 : 2,108.34 = 1,079.94 : x
2. Step 2: Convert to fraction form
   1,404.34/2,108.34 = 1,079.94/x
3. Step 3: Cross multiply
   1,404.34x = 2,108.34 × 1,079.94
4. Step 4: Simplify right side
   1,404.34x = 2,276,864.76
5. Step 5: Solve for x
   x = 2,276,864.76/1,404.34
6. Step 6: Final answer
   x = 1,621.31