Finding the Fourth Proportional to 1,385.35, 2,067.31 and 1,237.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385.35 : 2,067.31 = 1,237.52 : x
2. Step 2: Convert to fraction form
   1,385.35/2,067.31 = 1,237.52/x
3. Step 3: Cross multiply
   1,385.35x = 2,067.31 × 1,237.52
4. Step 4: Simplify right side
   1,385.35x = 2,558,337.47
5. Step 5: Solve for x
   x = 2,558,337.47/1,385.35
6. Step 6: Final answer
   x = 1,846.71