Finding the Fourth Proportional to 1,646.88, 2,269.89 and 1,507.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,646.88 : 2,269.89 = 1,507.38 : x
2. Step 2: Convert to fraction form
   1,646.88/2,269.89 = 1,507.38/x
3. Step 3: Cross multiply
   1,646.88x = 2,269.89 × 1,507.38
4. Step 4: Simplify right side
   1,646.88x = 3,421,586.79
5. Step 5: Solve for x
   x = 3,421,586.79/1,646.88
6. Step 6: Final answer
   x = 2,077.62