Finding the Fourth Proportional to 1,153.49, 1,590.59 and 755.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,153.49 : 1,590.59 = 755.50 : x
2. Step 2: Convert to fraction form
   1,153.49/1,590.59 = 755.50/x
3. Step 3: Cross multiply
   1,153.49x = 1,590.59 × 755.50
4. Step 4: Simplify right side
   1,153.49x = 1,201,700.00
5. Step 5: Solve for x
   x = 1,201,700.00/1,153.49
6. Step 6: Final answer
   x = 1,041.79