Finding the Fourth Proportional to 1,341.99, 1,852.74 and 870.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,341.99 : 1,852.74 = 870.03 : x
2. Step 2: Convert to fraction form
   1,341.99/1,852.74 = 870.03/x
3. Step 3: Cross multiply
   1,341.99x = 1,852.74 × 870.03
4. Step 4: Simplify right side
   1,341.99x = 1,611,939.38
5. Step 5: Solve for x
   x = 1,611,939.38/1,341.99
6. Step 6: Final answer
   x = 1,201.16