Finding the Fourth Proportional to 2,151.38, 2,969.40 and 1,404.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151.38 : 2,969.40 = 1,404.02 : x
2. Step 2: Convert to fraction form
   2,151.38/2,969.40 = 1,404.02/x
3. Step 3: Cross multiply
   2,151.38x = 2,969.40 × 1,404.02
4. Step 4: Simplify right side
   2,151.38x = 4,169,096.99
5. Step 5: Solve for x
   x = 4,169,096.99/2,151.38
6. Step 6: Final answer
   x = 1,937.87