Finding the Fourth Proportional to 1,333.90, 1,840.80 and 774.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.90 : 1,840.80 = 774.37 : x
2. Step 2: Convert to fraction form
   1,333.90/1,840.80 = 774.37/x
3. Step 3: Cross multiply
   1,333.90x = 1,840.80 × 774.37
4. Step 4: Simplify right side
   1,333.90x = 1,425,460.30
5. Step 5: Solve for x
   x = 1,425,460.30/1,333.90
6. Step 6: Final answer
   x = 1,068.64