Finding the Fourth Proportional to 1,431.47, 1,973.16 and 1,167.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,431.47 : 1,973.16 = 1,167.01 : x
2. Step 2: Convert to fraction form
   1,431.47/1,973.16 = 1,167.01/x
3. Step 3: Cross multiply
   1,431.47x = 1,973.16 × 1,167.01
4. Step 4: Simplify right side
   1,431.47x = 2,302,692.52
5. Step 5: Solve for x
   x = 2,302,692.52/1,431.47
6. Step 6: Final answer
   x = 1,608.62