Finding the Fourth Proportional to 1,490.83, 2,056.69 and 901.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,490.83 : 2,056.69 = 901.02 : x
2. Step 2: Convert to fraction form
   1,490.83/2,056.69 = 901.02/x
3. Step 3: Cross multiply
   1,490.83x = 2,056.69 × 901.02
4. Step 4: Simplify right side
   1,490.83x = 1,853,118.82
5. Step 5: Solve for x
   x = 1,853,118.82/1,490.83
6. Step 6: Final answer
   x = 1,243.01