Finding the Fourth Proportional to 1,404.27, 2,106.57 and 1,146.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.27 : 2,106.57 = 1,146.45 : x
2. Step 2: Convert to fraction form
   1,404.27/2,106.57 = 1,146.45/x
3. Step 3: Cross multiply
   1,404.27x = 2,106.57 × 1,146.45
4. Step 4: Simplify right side
   1,404.27x = 2,415,089.38
5. Step 5: Solve for x
   x = 2,415,089.38/1,404.27
6. Step 6: Final answer
   x = 1,719.82