Finding the Fourth Proportional to 1,943.25, 2,915.39 and 1,018.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,943.25 : 2,915.39 = 1,018.56 : x
2. Step 2: Convert to fraction form
   1,943.25/2,915.39 = 1,018.56/x
3. Step 3: Cross multiply
   1,943.25x = 2,915.39 × 1,018.56
4. Step 4: Simplify right side
   1,943.25x = 2,969,494.55
5. Step 5: Solve for x
   x = 2,969,494.55/1,943.25
6. Step 6: Final answer
   x = 1,528.11