Finding the Fourth Proportional to 1,370.00, 1,890.06 and 872.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,370.00 : 1,890.06 = 872.54 : x
2. Step 2: Convert to fraction form
   1,370.00/1,890.06 = 872.54/x
3. Step 3: Cross multiply
   1,370.00x = 1,890.06 × 872.54
4. Step 4: Simplify right side
   1,370.00x = 1,649,152.95
5. Step 5: Solve for x
   x = 1,649,152.95/1,370.00
6. Step 6: Final answer
   x = 1,203.77