Finding the Fourth Proportional to 1,342.35, 1,852.35 and 900.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,342.35 : 1,852.35 = 900.18 : x
2. Step 2: Convert to fraction form
   1,342.35/1,852.35 = 900.18/x
3. Step 3: Cross multiply
   1,342.35x = 1,852.35 × 900.18
4. Step 4: Simplify right side
   1,342.35x = 1,667,448.42
5. Step 5: Solve for x
   x = 1,667,448.42/1,342.35
6. Step 6: Final answer
   x = 1,242.19