Finding the Fourth Proportional to 1,984.86, 2,738.84 and 1,145.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,984.86 : 2,738.84 = 1,145.48 : x
2. Step 2: Convert to fraction form
   1,984.86/2,738.84 = 1,145.48/x
3. Step 3: Cross multiply
   1,984.86x = 2,738.84 × 1,145.48
4. Step 4: Simplify right side
   1,984.86x = 3,137,267.02
5. Step 5: Solve for x
   x = 3,137,267.02/1,984.86
6. Step 6: Final answer
   x = 1,580.60