Finding the Fourth Proportional to 1,334.07, 1,995.57 and 1,042.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,334.07 : 1,995.57 = 1,042.47 : x
2. Step 2: Convert to fraction form
   1,334.07/1,995.57 = 1,042.47/x
3. Step 3: Cross multiply
   1,334.07x = 1,995.57 × 1,042.47
4. Step 4: Simplify right side
   1,334.07x = 2,080,321.86
5. Step 5: Solve for x
   x = 2,080,321.86/1,334.07
6. Step 6: Final answer
   x = 1,559.38