Finding the Fourth Proportional to 2,801.76, 4,204.40 and 1,070.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,801.76 : 4,204.40 = 1,070.56 : x
2. Step 2: Convert to fraction form
   2,801.76/4,204.40 = 1,070.56/x
3. Step 3: Cross multiply
   2,801.76x = 4,204.40 × 1,070.56
4. Step 4: Simplify right side
   2,801.76x = 4,501,062.46
5. Step 5: Solve for x
   x = 4,501,062.46/2,801.76
6. Step 6: Final answer
   x = 1,606.51