Finding the Fourth Proportional to 1,985.94, 2,740.72 and 1,146.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,985.94 : 2,740.72 = 1,146.80 : x
2. Step 2: Convert to fraction form
   1,985.94/2,740.72 = 1,146.80/x
3. Step 3: Cross multiply
   1,985.94x = 2,740.72 × 1,146.80
4. Step 4: Simplify right side
   1,985.94x = 3,143,057.70
5. Step 5: Solve for x
   x = 3,143,057.70/1,985.94
6. Step 6: Final answer
   x = 1,582.65