Finding the Fourth Proportional to 1,837.47, 2,536.73 and 1,278.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,837.47 : 2,536.73 = 1,278.43 : x
2. Step 2: Convert to fraction form
   1,837.47/2,536.73 = 1,278.43/x
3. Step 3: Cross multiply
   1,837.47x = 2,536.73 × 1,278.43
4. Step 4: Simplify right side
   1,837.47x = 3,243,031.73
5. Step 5: Solve for x
   x = 3,243,031.73/1,837.47
6. Step 6: Final answer
   x = 1,764.94