Finding the Fourth Proportional to 1,978.16, 2,729.72 and 1,093.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.16 : 2,729.72 = 1,093.80 : x
2. Step 2: Convert to fraction form
   1,978.16/2,729.72 = 1,093.80/x
3. Step 3: Cross multiply
   1,978.16x = 2,729.72 × 1,093.80
4. Step 4: Simplify right side
   1,978.16x = 2,985,767.74
5. Step 5: Solve for x
   x = 2,985,767.74/1,978.16
6. Step 6: Final answer
   x = 1,509.37