Finding the Fourth Proportional to 1,984.32, 2,738.49 and 1,145.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,984.32 : 2,738.49 = 1,145.18 : x
2. Step 2: Convert to fraction form
   1,984.32/2,738.49 = 1,145.18/x
3. Step 3: Cross multiply
   1,984.32x = 2,738.49 × 1,145.18
4. Step 4: Simplify right side
   1,984.32x = 3,136,050.29
5. Step 5: Solve for x
   x = 3,136,050.29/1,984.32
6. Step 6: Final answer
   x = 1,580.42