Finding the Fourth Proportional to 1,321.96, 1,823.78 and 1,156.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,321.96 : 1,823.78 = 1,156.18 : x
2. Step 2: Convert to fraction form
   1,321.96/1,823.78 = 1,156.18/x
3. Step 3: Cross multiply
   1,321.96x = 1,823.78 × 1,156.18
4. Step 4: Simplify right side
   1,321.96x = 2,108,617.96
5. Step 5: Solve for x
   x = 2,108,617.96/1,321.96
6. Step 6: Final answer
   x = 1,595.07