Finding the Fourth Proportional to 1,985.49, 2,740.37 and 1,146.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,985.49 : 2,740.37 = 1,146.74 : x
2. Step 2: Convert to fraction form
   1,985.49/2,740.37 = 1,146.74/x
3. Step 3: Cross multiply
   1,985.49x = 2,740.37 × 1,146.74
4. Step 4: Simplify right side
   1,985.49x = 3,142,472.46
5. Step 5: Solve for x
   x = 3,142,472.46/1,985.49
6. Step 6: Final answer
   x = 1,582.72