Finding the Fourth Proportional to 1,978.61, 2,730.50 and 1,094.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.61 : 2,730.50 = 1,094.40 : x
2. Step 2: Convert to fraction form
   1,978.61/2,730.50 = 1,094.40/x
3. Step 3: Cross multiply
   1,978.61x = 2,730.50 × 1,094.40
4. Step 4: Simplify right side
   1,978.61x = 2,988,253.73
5. Step 5: Solve for x
   x = 2,988,253.73/1,978.61
6. Step 6: Final answer
   x = 1,510.28