Finding the Fourth Proportional to 3,380.67, 5,070.33 and 914.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,380.67 : 5,070.33 = 914.83 : x
2. Step 2: Convert to fraction form
   3,380.67/5,070.33 = 914.83/x
3. Step 3: Cross multiply
   3,380.67x = 5,070.33 × 914.83
4. Step 4: Simplify right side
   3,380.67x = 4,638,477.32
5. Step 5: Solve for x
   x = 4,638,477.32/3,380.67
6. Step 6: Final answer
   x = 1,372.06