Finding the Fourth Proportional to 1,606.52, 2,216.48 and 907.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,606.52 : 2,216.48 = 907.76 : x
2. Step 2: Convert to fraction form
   1,606.52/2,216.48 = 907.76/x
3. Step 3: Cross multiply
   1,606.52x = 2,216.48 × 907.76
4. Step 4: Simplify right side
   1,606.52x = 2,012,031.88
5. Step 5: Solve for x
   x = 2,012,031.88/1,606.52
6. Step 6: Final answer
   x = 1,252.42