Finding the Fourth Proportional to 1,454.30, 2,170.91 and 1,345.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,454.30 : 2,170.91 = 1,345.89 : x
2. Step 2: Convert to fraction form
   1,454.30/2,170.91 = 1,345.89/x
3. Step 3: Cross multiply
   1,454.30x = 2,170.91 × 1,345.89
4. Step 4: Simplify right side
   1,454.30x = 2,921,799.33
5. Step 5: Solve for x
   x = 2,921,799.33/1,454.30
6. Step 6: Final answer
   x = 2,009.07