Finding the Fourth Proportional to 1,796.89, 2,692.87 and 870.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,796.89 : 2,692.87 = 870.60 : x
2. Step 2: Convert to fraction form
   1,796.89/2,692.87 = 870.60/x
3. Step 3: Cross multiply
   1,796.89x = 2,692.87 × 870.60
4. Step 4: Simplify right side
   1,796.89x = 2,344,412.62
5. Step 5: Solve for x
   x = 2,344,412.62/1,796.89
6. Step 6: Final answer
   x = 1,304.71