Finding the Fourth Proportional to 1,373.40, 2,056.42 and 824.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373.40 : 2,056.42 = 824.82 : x
2. Step 2: Convert to fraction form
   1,373.40/2,056.42 = 824.82/x
3. Step 3: Cross multiply
   1,373.40x = 2,056.42 × 824.82
4. Step 4: Simplify right side
   1,373.40x = 1,696,176.34
5. Step 5: Solve for x
   x = 1,696,176.34/1,373.40
6. Step 6: Final answer
   x = 1,235.02