Finding the Fourth Proportional to 1,249.02, 1,870.29 and 1,042.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,249.02 : 1,870.29 = 1,042.47 : x
2. Step 2: Convert to fraction form
   1,249.02/1,870.29 = 1,042.47/x
3. Step 3: Cross multiply
   1,249.02x = 1,870.29 × 1,042.47
4. Step 4: Simplify right side
   1,249.02x = 1,949,721.22
5. Step 5: Solve for x
   x = 1,949,721.22/1,249.02
6. Step 6: Final answer
   x = 1,561.00