Finding the Fourth Proportional to 1,978.65, 2,730.57 and 1,094.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.65 : 2,730.57 = 1,094.43 : x
2. Step 2: Convert to fraction form
   1,978.65/2,730.57 = 1,094.43/x
3. Step 3: Cross multiply
   1,978.65x = 2,730.57 × 1,094.43
4. Step 4: Simplify right side
   1,978.65x = 2,988,417.73
5. Step 5: Solve for x
   x = 2,988,417.73/1,978.65
6. Step 6: Final answer
   x = 1,510.33