Finding the Fourth Proportional to 1,337.72, 1,845.45 and 826.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.72 : 1,845.45 = 826.47 : x
2. Step 2: Convert to fraction form
   1,337.72/1,845.45 = 826.47/x
3. Step 3: Cross multiply
   1,337.72x = 1,845.45 × 826.47
4. Step 4: Simplify right side
   1,337.72x = 1,525,209.06
5. Step 5: Solve for x
   x = 1,525,209.06/1,337.72
6. Step 6: Final answer
   x = 1,140.16