Finding the Fourth Proportional to 1,495.77, 2,064.32 and 906.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,495.77 : 2,064.32 = 906.31 : x
2. Step 2: Convert to fraction form
   1,495.77/2,064.32 = 906.31/x
3. Step 3: Cross multiply
   1,495.77x = 2,064.32 × 906.31
4. Step 4: Simplify right side
   1,495.77x = 1,870,913.86
5. Step 5: Solve for x
   x = 1,870,913.86/1,495.77
6. Step 6: Final answer
   x = 1,250.80