Finding the Fourth Proportional to 1,955.61, 2,698.56 and 1,116.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,955.61 : 2,698.56 = 1,116.30 : x
2. Step 2: Convert to fraction form
   1,955.61/2,698.56 = 1,116.30/x
3. Step 3: Cross multiply
   1,955.61x = 2,698.56 × 1,116.30
4. Step 4: Simplify right side
   1,955.61x = 3,012,403.69
5. Step 5: Solve for x
   x = 3,012,403.69/1,955.61
6. Step 6: Final answer
   x = 1,540.39