Finding the Fourth Proportional to 1,874.49, 2,809.89 and 900.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,874.49 : 2,809.89 = 900.06 : x
2. Step 2: Convert to fraction form
   1,874.49/2,809.89 = 900.06/x
3. Step 3: Cross multiply
   1,874.49x = 2,809.89 × 900.06
4. Step 4: Simplify right side
   1,874.49x = 2,529,069.59
5. Step 5: Solve for x
   x = 2,529,069.59/1,874.49
6. Step 6: Final answer
   x = 1,349.20