Finding the Fourth Proportional to 1,341.52, 2,011.72 and 692.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,341.52 : 2,011.72 = 692.72 : x
2. Step 2: Convert to fraction form
   1,341.52/2,011.72 = 692.72/x
3. Step 3: Cross multiply
   1,341.52x = 2,011.72 × 692.72
4. Step 4: Simplify right side
   1,341.52x = 1,393,558.68
5. Step 5: Solve for x
   x = 1,393,558.68/1,341.52
6. Step 6: Final answer
   x = 1,038.79