Finding the Fourth Proportional to 1,055.31, 1,573.64 and 1,046.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,055.31 : 1,573.64 = 1,046.10 : x
2. Step 2: Convert to fraction form
   1,055.31/1,573.64 = 1,046.10/x
3. Step 3: Cross multiply
   1,055.31x = 1,573.64 × 1,046.10
4. Step 4: Simplify right side
   1,055.31x = 1,646,179.57
5. Step 5: Solve for x
   x = 1,646,179.57/1,055.31
6. Step 6: Final answer
   x = 1,559.90