Finding the Fourth Proportional to 1,548.67, 2,322.69 and 1,290.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,548.67 : 2,322.69 = 1,290.34 : x
2. Step 2: Convert to fraction form
   1,548.67/2,322.69 = 1,290.34/x
3. Step 3: Cross multiply
   1,548.67x = 2,322.69 × 1,290.34
4. Step 4: Simplify right side
   1,548.67x = 2,997,059.81
5. Step 5: Solve for x
   x = 2,997,059.81/1,548.67
6. Step 6: Final answer
   x = 1,935.25