Finding the Fourth Proportional to 1,334.07, 1,840.72 and 774.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,334.07 : 1,840.72 = 774.21 : x
2. Step 2: Convert to fraction form
   1,334.07/1,840.72 = 774.21/x
3. Step 3: Cross multiply
   1,334.07x = 1,840.72 × 774.21
4. Step 4: Simplify right side
   1,334.07x = 1,425,099.96
5. Step 5: Solve for x
   x = 1,425,099.96/1,334.07
6. Step 6: Final answer
   x = 1,068.24