Finding the Fourth Proportional to 1,918.32, 2,874.72 and 1,094.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,918.32 : 2,874.72 = 1,094.88 : x
2. Step 2: Convert to fraction form
   1,918.32/2,874.72 = 1,094.88/x
3. Step 3: Cross multiply
   1,918.32x = 2,874.72 × 1,094.88
4. Step 4: Simplify right side
   1,918.32x = 3,147,473.43
5. Step 5: Solve for x
   x = 3,147,473.43/1,918.32
6. Step 6: Final answer
   x = 1,640.74