Finding the Fourth Proportional to 1,490.81, 2,057.00 and 900.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,490.81 : 2,057.00 = 900.32 : x
2. Step 2: Convert to fraction form
   1,490.81/2,057.00 = 900.32/x
3. Step 3: Cross multiply
   1,490.81x = 2,057.00 × 900.32
4. Step 4: Simplify right side
   1,490.81x = 1,851,943.45
5. Step 5: Solve for x
   x = 1,851,943.45/1,490.81
6. Step 6: Final answer
   x = 1,242.24