Finding the Fourth Proportional to 1,157.80, 1,597.86 and 692.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,157.80 : 1,597.86 = 692.04 : x
2. Step 2: Convert to fraction form
   1,157.80/1,597.86 = 692.04/x
3. Step 3: Cross multiply
   1,157.80x = 1,597.86 × 692.04
4. Step 4: Simplify right side
   1,157.80x = 1,105,783.03
5. Step 5: Solve for x
   x = 1,105,783.03/1,157.80
6. Step 6: Final answer
   x = 955.07