Finding the Fourth Proportional to 1,437.93, 1,983.72 and 906.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,437.93 : 1,983.72 = 906.39 : x
2. Step 2: Convert to fraction form
   1,437.93/1,983.72 = 906.39/x
3. Step 3: Cross multiply
   1,437.93x = 1,983.72 × 906.39
4. Step 4: Simplify right side
   1,437.93x = 1,798,032.95
5. Step 5: Solve for x
   x = 1,798,032.95/1,437.93
6. Step 6: Final answer
   x = 1,250.43