Finding the Fourth Proportional to 1,314.48, 1,812.72 and 841.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,314.48 : 1,812.72 = 841.56 : x
2. Step 2: Convert to fraction form
   1,314.48/1,812.72 = 841.56/x
3. Step 3: Cross multiply
   1,314.48x = 1,812.72 × 841.56
4. Step 4: Simplify right side
   1,314.48x = 1,525,512.64
5. Step 5: Solve for x
   x = 1,525,512.64/1,314.48
6. Step 6: Final answer
   x = 1,160.54