Finding the Fourth Proportional to 1,978.81, 2,730.77 and 1,094.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.81 : 2,730.77 = 1,094.64 : x
2. Step 2: Convert to fraction form
   1,978.81/2,730.77 = 1,094.64/x
3. Step 3: Cross multiply
   1,978.81x = 2,730.77 × 1,094.64
4. Step 4: Simplify right side
   1,978.81x = 2,989,198.46
5. Step 5: Solve for x
   x = 2,989,198.46/1,978.81
6. Step 6: Final answer
   x = 1,510.61