Finding the Fourth Proportional to 1,137.39, 1,569.06 and 739.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,137.39 : 1,569.06 = 739.02 : x
2. Step 2: Convert to fraction form
   1,137.39/1,569.06 = 739.02/x
3. Step 3: Cross multiply
   1,137.39x = 1,569.06 × 739.02
4. Step 4: Simplify right side
   1,137.39x = 1,159,566.72
5. Step 5: Solve for x
   x = 1,159,566.72/1,137.39
6. Step 6: Final answer
   x = 1,019.50