Finding the Fourth Proportional to 2,302.78, 3,453.72 and 1,070.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,302.78 : 3,453.72 = 1,070.77 : x
2. Step 2: Convert to fraction form
   2,302.78/3,453.72 = 1,070.77/x
3. Step 3: Cross multiply
   2,302.78x = 3,453.72 × 1,070.77
4. Step 4: Simplify right side
   2,302.78x = 3,698,139.76
5. Step 5: Solve for x
   x = 3,698,139.76/2,302.78
6. Step 6: Final answer
   x = 1,605.95