Finding the Fourth Proportional to 1,666.34, 2,499.30 and 570.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,666.34 : 2,499.30 = 570.68 : x
2. Step 2: Convert to fraction form
   1,666.34/2,499.30 = 570.68/x
3. Step 3: Cross multiply
   1,666.34x = 2,499.30 × 570.68
4. Step 4: Simplify right side
   1,666.34x = 1,426,300.52
5. Step 5: Solve for x
   x = 1,426,300.52/1,666.34
6. Step 6: Final answer
   x = 855.95