Finding the Fourth Proportional to 1,978.50, 2,730.12 and 1,094.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.50 : 2,730.12 = 1,094.28 : x
2. Step 2: Convert to fraction form
   1,978.50/2,730.12 = 1,094.28/x
3. Step 3: Cross multiply
   1,978.50x = 2,730.12 × 1,094.28
4. Step 4: Simplify right side
   1,978.50x = 2,987,515.71
5. Step 5: Solve for x
   x = 2,987,515.71/1,978.50
6. Step 6: Final answer
   x = 1,509.99