Finding the Fourth Proportional to 1,978.34, 2,727.96 and 1,348.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.34 : 2,727.96 = 1,348.98 : x
2. Step 2: Convert to fraction form
   1,978.34/2,727.96 = 1,348.98/x
3. Step 3: Cross multiply
   1,978.34x = 2,727.96 × 1,348.98
4. Step 4: Simplify right side
   1,978.34x = 3,679,963.48
5. Step 5: Solve for x
   x = 3,679,963.48/1,978.34
6. Step 6: Final answer
   x = 1,860.13