Finding the Fourth Proportional to 1,692.78, 2,334.72 and 1,133.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,692.78 : 2,334.72 = 1,133.07 : x
2. Step 2: Convert to fraction form
   1,692.78/2,334.72 = 1,133.07/x
3. Step 3: Cross multiply
   1,692.78x = 2,334.72 × 1,133.07
4. Step 4: Simplify right side
   1,692.78x = 2,645,401.19
5. Step 5: Solve for x
   x = 2,645,401.19/1,692.78
6. Step 6: Final answer
   x = 1,562.76