Finding the Fourth Proportional to 1,300.58, 1,795.41 and 985.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.58 : 1,795.41 = 985.90 : x
2. Step 2: Convert to fraction form
   1,300.58/1,795.41 = 985.90/x
3. Step 3: Cross multiply
   1,300.58x = 1,795.41 × 985.90
4. Step 4: Simplify right side
   1,300.58x = 1,770,094.72
5. Step 5: Solve for x
   x = 1,770,094.72/1,300.58
6. Step 6: Final answer
   x = 1,361.00