Finding the Fourth Proportional to 2,043.78, 3,064.86 and 1,070.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,043.78 : 3,064.86 = 1,070.70 : x
2. Step 2: Convert to fraction form
   2,043.78/3,064.86 = 1,070.70/x
3. Step 3: Cross multiply
   2,043.78x = 3,064.86 × 1,070.70
4. Step 4: Simplify right side
   2,043.78x = 3,281,545.60
5. Step 5: Solve for x
   x = 3,281,545.60/2,043.78
6. Step 6: Final answer
   x = 1,605.63