Finding the Fourth Proportional to 1,955.83, 2,699.39 and 1,247.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,955.83 : 2,699.39 = 1,247.89 : x
2. Step 2: Convert to fraction form
   1,955.83/2,699.39 = 1,247.89/x
3. Step 3: Cross multiply
   1,955.83x = 2,699.39 × 1,247.89
4. Step 4: Simplify right side
   1,955.83x = 3,368,531.41
5. Step 5: Solve for x
   x = 3,368,531.41/1,955.83
6. Step 6: Final answer
   x = 1,722.30