Finding the Fourth Proportional to 1,457.63, 2,011.53 and 933.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,457.63 : 2,011.53 = 933.69 : x
2. Step 2: Convert to fraction form
   1,457.63/2,011.53 = 933.69/x
3. Step 3: Cross multiply
   1,457.63x = 2,011.53 × 933.69
4. Step 4: Simplify right side
   1,457.63x = 1,878,145.45
5. Step 5: Solve for x
   x = 1,878,145.45/1,457.63
6. Step 6: Final answer
   x = 1,288.50