Finding the Fourth Proportional to 1,273.43, 1,900.01 and 1,117.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,273.43 : 1,900.01 = 1,117.60 : x
2. Step 2: Convert to fraction form
   1,273.43/1,900.01 = 1,117.60/x
3. Step 3: Cross multiply
   1,273.43x = 1,900.01 × 1,117.60
4. Step 4: Simplify right side
   1,273.43x = 2,123,451.18
5. Step 5: Solve for x
   x = 2,123,451.18/1,273.43
6. Step 6: Final answer
   x = 1,667.51