Finding the Fourth Proportional to 1,427.17, 1,968.71 and 837.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427.17 : 1,968.71 = 837.59 : x
2. Step 2: Convert to fraction form
   1,427.17/1,968.71 = 837.59/x
3. Step 3: Cross multiply
   1,427.17x = 1,968.71 × 837.59
4. Step 4: Simplify right side
   1,427.17x = 1,648,967.62
5. Step 5: Solve for x
   x = 1,648,967.62/1,427.17
6. Step 6: Final answer
   x = 1,155.41