Finding the Fourth Proportional to 2,301.12, 3,449.28 and 1,129.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,301.12 : 3,449.28 = 1,129.50 : x
2. Step 2: Convert to fraction form
   2,301.12/3,449.28 = 1,129.50/x
3. Step 3: Cross multiply
   2,301.12x = 3,449.28 × 1,129.50
4. Step 4: Simplify right side
   2,301.12x = 3,895,961.76
5. Step 5: Solve for x
   x = 3,895,961.76/2,301.12
6. Step 6: Final answer
   x = 1,693.07