Finding the Fourth Proportional to 1,978.74, 2,730.72 and 1,094.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.74 : 2,730.72 = 1,094.64 : x
2. Step 2: Convert to fraction form
   1,978.74/2,730.72 = 1,094.64/x
3. Step 3: Cross multiply
   1,978.74x = 2,730.72 × 1,094.64
4. Step 4: Simplify right side
   1,978.74x = 2,989,155.34
5. Step 5: Solve for x
   x = 2,989,155.34/1,978.74
6. Step 6: Final answer
   x = 1,510.64