Finding the Fourth Proportional to 1,666.37, 2,500.52 and 742.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,666.37 : 2,500.52 = 742.03 : x
2. Step 2: Convert to fraction form
   1,666.37/2,500.52 = 742.03/x
3. Step 3: Cross multiply
   1,666.37x = 2,500.52 × 742.03
4. Step 4: Simplify right side
   1,666.37x = 1,855,460.86
5. Step 5: Solve for x
   x = 1,855,460.86/1,666.37
6. Step 6: Final answer
   x = 1,113.47