Finding the Fourth Proportional to 1,459.30, 2,013.86 and 900.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,459.30 : 2,013.86 = 900.10 : x
2. Step 2: Convert to fraction form
   1,459.30/2,013.86 = 900.10/x
3. Step 3: Cross multiply
   1,459.30x = 2,013.86 × 900.10
4. Step 4: Simplify right side
   1,459.30x = 1,812,675.39
5. Step 5: Solve for x
   x = 1,812,675.39/1,459.30
6. Step 6: Final answer
   x = 1,242.15