Finding the Fourth Proportional to 1,942.10, 2,910.53 and 886.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,942.10 : 2,910.53 = 886.59 : x
2. Step 2: Convert to fraction form
   1,942.10/2,910.53 = 886.59/x
3. Step 3: Cross multiply
   1,942.10x = 2,910.53 × 886.59
4. Step 4: Simplify right side
   1,942.10x = 2,580,442.36
5. Step 5: Solve for x
   x = 2,580,442.36/1,942.10
6. Step 6: Final answer
   x = 1,328.69