Finding the Fourth Proportional to 1,606.08, 2,216.34 and 907.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,606.08 : 2,216.34 = 907.50 : x
2. Step 2: Convert to fraction form
   1,606.08/2,216.34 = 907.50/x
3. Step 3: Cross multiply
   1,606.08x = 2,216.34 × 907.50
4. Step 4: Simplify right side
   1,606.08x = 2,011,328.55
5. Step 5: Solve for x
   x = 2,011,328.55/1,606.08
6. Step 6: Final answer
   x = 1,252.32