Finding the Fourth Proportional to 1,347.59, 1,857.39 and 1,028.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,347.59 : 1,857.39 = 1,028.45 : x
2. Step 2: Convert to fraction form
   1,347.59/1,857.39 = 1,028.45/x
3. Step 3: Cross multiply
   1,347.59x = 1,857.39 × 1,028.45
4. Step 4: Simplify right side
   1,347.59x = 1,910,232.75
5. Step 5: Solve for x
   x = 1,910,232.75/1,347.59
6. Step 6: Final answer
   x = 1,417.52