Finding the Fourth Proportional to 1,367.35, 1,887.05 and 870.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,367.35 : 1,887.05 = 870.01 : x
2. Step 2: Convert to fraction form
   1,367.35/1,887.05 = 870.01/x
3. Step 3: Cross multiply
   1,367.35x = 1,887.05 × 870.01
4. Step 4: Simplify right side
   1,367.35x = 1,641,752.37
5. Step 5: Solve for x
   x = 1,641,752.37/1,367.35
6. Step 6: Final answer
   x = 1,200.68