Finding the Fourth Proportional to 1,984.74, 2,739.32 and 1,145.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,984.74 : 2,739.32 = 1,145.99 : x
2. Step 2: Convert to fraction form
   1,984.74/2,739.32 = 1,145.99/x
3. Step 3: Cross multiply
   1,984.74x = 2,739.32 × 1,145.99
4. Step 4: Simplify right side
   1,984.74x = 3,139,222.50
5. Step 5: Solve for x
   x = 3,139,222.50/1,984.74
6. Step 6: Final answer
   x = 1,581.68