Finding the Fourth Proportional to 2,065.02, 3,098.61 and 1,128.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,065.02 : 3,098.61 = 1,128.63 : x
2. Step 2: Convert to fraction form
   2,065.02/3,098.61 = 1,128.63/x
3. Step 3: Cross multiply
   2,065.02x = 3,098.61 × 1,128.63
4. Step 4: Simplify right side
   2,065.02x = 3,497,184.20
5. Step 5: Solve for x
   x = 3,497,184.20/2,065.02
6. Step 6: Final answer
   x = 1,693.54