Finding the Fourth Proportional to 1,897.01, 2,617.92 and 1,057.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,897.01 : 2,617.92 = 1,057.79 : x
2. Step 2: Convert to fraction form
   1,897.01/2,617.92 = 1,057.79/x
3. Step 3: Cross multiply
   1,897.01x = 2,617.92 × 1,057.79
4. Step 4: Simplify right side
   1,897.01x = 2,769,196.51
5. Step 5: Solve for x
   x = 2,769,196.51/1,897.01
6. Step 6: Final answer
   x = 1,459.77