Finding the Fourth Proportional to 2,333.98, 3,483.89 and 2,057.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,333.98 : 3,483.89 = 2,057.20 : x
2. Step 2: Convert to fraction form
   2,333.98/3,483.89 = 2,057.20/x
3. Step 3: Cross multiply
   2,333.98x = 3,483.89 × 2,057.20
4. Step 4: Simplify right side
   2,333.98x = 7,167,058.51
5. Step 5: Solve for x
   x = 7,167,058.51/2,333.98
6. Step 6: Final answer
   x = 3,070.75