Finding the Fourth Proportional to 1,459.98, 2,014.74 and 870.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,459.98 : 2,014.74 = 870.30 : x
2. Step 2: Convert to fraction form
   1,459.98/2,014.74 = 870.30/x
3. Step 3: Cross multiply
   1,459.98x = 2,014.74 × 870.30
4. Step 4: Simplify right side
   1,459.98x = 1,753,428.22
5. Step 5: Solve for x
   x = 1,753,428.22/1,459.98
6. Step 6: Final answer
   x = 1,200.99