Finding the Fourth Proportional to 2,287.59, 3,430.17 and 1,053.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.59 : 3,430.17 = 1,053.95 : x
2. Step 2: Convert to fraction form
   2,287.59/3,430.17 = 1,053.95/x
3. Step 3: Cross multiply
   2,287.59x = 3,430.17 × 1,053.95
4. Step 4: Simplify right side
   2,287.59x = 3,615,227.96
5. Step 5: Solve for x
   x = 3,615,227.96/2,287.59
6. Step 6: Final answer
   x = 1,580.36