Finding the Fourth Proportional to 1,457.94, 2,181.16 and 1,126.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,457.94 : 2,181.16 = 1,126.30 : x
2. Step 2: Convert to fraction form
   1,457.94/2,181.16 = 1,126.30/x
3. Step 3: Cross multiply
   1,457.94x = 2,181.16 × 1,126.30
4. Step 4: Simplify right side
   1,457.94x = 2,456,640.51
5. Step 5: Solve for x
   x = 2,456,640.51/1,457.94
6. Step 6: Final answer
   x = 1,685.01