Finding the Fourth Proportional to 1,606.23, 2,404.78 and 1,056.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,606.23 : 2,404.78 = 1,056.76 : x
2. Step 2: Convert to fraction form
   1,606.23/2,404.78 = 1,056.76/x
3. Step 3: Cross multiply
   1,606.23x = 2,404.78 × 1,056.76
4. Step 4: Simplify right side
   1,606.23x = 2,541,275.31
5. Step 5: Solve for x
   x = 2,541,275.31/1,606.23
6. Step 6: Final answer
   x = 1,582.14