Finding the Fourth Proportional to 1,370.30, 1,890.41 and 846.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,370.30 : 1,890.41 = 846.63 : x
2. Step 2: Convert to fraction form
   1,370.30/1,890.41 = 846.63/x
3. Step 3: Cross multiply
   1,370.30x = 1,890.41 × 846.63
4. Step 4: Simplify right side
   1,370.30x = 1,600,473.59
5. Step 5: Solve for x
   x = 1,600,473.59/1,370.30
6. Step 6: Final answer
   x = 1,167.98