Finding the Fourth Proportional to 2,985.89, 4,480.79 and 1,137.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,985.89 : 4,480.79 = 1,137.02 : x
2. Step 2: Convert to fraction form
   2,985.89/4,480.79 = 1,137.02/x
3. Step 3: Cross multiply
   2,985.89x = 4,480.79 × 1,137.02
4. Step 4: Simplify right side
   2,985.89x = 5,094,754.07
5. Step 5: Solve for x
   x = 5,094,754.07/2,985.89
6. Step 6: Final answer
   x = 1,706.28