Finding the Fourth Proportional to 1,692.66, 2,335.59 and 994.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,692.66 : 2,335.59 = 994.17 : x
2. Step 2: Convert to fraction form
   1,692.66/2,335.59 = 994.17/x
3. Step 3: Cross multiply
   1,692.66x = 2,335.59 × 994.17
4. Step 4: Simplify right side
   1,692.66x = 2,321,973.51
5. Step 5: Solve for x
   x = 2,321,973.51/1,692.66
6. Step 6: Final answer
   x = 1,371.79