Finding the Fourth Proportional to 1,978.38, 2,730.20 and 1,094.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.38 : 2,730.20 = 1,094.20 : x
2. Step 2: Convert to fraction form
   1,978.38/2,730.20 = 1,094.20/x
3. Step 3: Cross multiply
   1,978.38x = 2,730.20 × 1,094.20
4. Step 4: Simplify right side
   1,978.38x = 2,987,384.84
5. Step 5: Solve for x
   x = 2,987,384.84/1,978.38
6. Step 6: Final answer
   x = 1,510.02