Finding the Fourth Proportional to 1,139.34, 1,710.69 and 1,083.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139.34 : 1,710.69 = 1,083.63 : x
2. Step 2: Convert to fraction form
   1,139.34/1,710.69 = 1,083.63/x
3. Step 3: Cross multiply
   1,139.34x = 1,710.69 × 1,083.63
4. Step 4: Simplify right side
   1,139.34x = 1,853,755.00
5. Step 5: Solve for x
   x = 1,853,755.00/1,139.34
6. Step 6: Final answer
   x = 1,627.04