Finding the Fourth Proportional to 2,618.78, 3,927.56 and 975.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,618.78 : 3,927.56 = 975.49 : x
2. Step 2: Convert to fraction form
   2,618.78/3,927.56 = 975.49/x
3. Step 3: Cross multiply
   2,618.78x = 3,927.56 × 975.49
4. Step 4: Simplify right side
   2,618.78x = 3,831,280.81
5. Step 5: Solve for x
   x = 3,831,280.81/2,618.78
6. Step 6: Final answer
   x = 1,463.00