Finding the Fourth Proportional to 1,370.34, 1,890.90 and 846.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,370.34 : 1,890.90 = 846.18 : x
2. Step 2: Convert to fraction form
   1,370.34/1,890.90 = 846.18/x
3. Step 3: Cross multiply
   1,370.34x = 1,890.90 × 846.18
4. Step 4: Simplify right side
   1,370.34x = 1,600,041.76
5. Step 5: Solve for x
   x = 1,600,041.76/1,370.34
6. Step 6: Final answer
   x = 1,167.62