Finding the Fourth Proportional to 1,637.02, 2,259.78 and 1,047.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,637.02 : 2,259.78 = 1,047.42 : x
2. Step 2: Convert to fraction form
   1,637.02/2,259.78 = 1,047.42/x
3. Step 3: Cross multiply
   1,637.02x = 2,259.78 × 1,047.42
4. Step 4: Simplify right side
   1,637.02x = 2,366,938.77
5. Step 5: Solve for x
   x = 2,366,938.77/1,637.02
6. Step 6: Final answer
   x = 1,445.88