Finding the Fourth Proportional to 1,342.96, 1,852.95 and 818.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,342.96 : 1,852.95 = 818.62 : x
2. Step 2: Convert to fraction form
   1,342.96/1,852.95 = 818.62/x
3. Step 3: Cross multiply
   1,342.96x = 1,852.95 × 818.62
4. Step 4: Simplify right side
   1,342.96x = 1,516,861.93
5. Step 5: Solve for x
   x = 1,516,861.93/1,342.96
6. Step 6: Final answer
   x = 1,129.49