Finding the Fourth Proportional to 1,400.76, 2,100.42 and 846.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,400.76 : 2,100.42 = 846.52 : x
2. Step 2: Convert to fraction form
   1,400.76/2,100.42 = 846.52/x
3. Step 3: Cross multiply
   1,400.76x = 2,100.42 × 846.52
4. Step 4: Simplify right side
   1,400.76x = 1,778,042.29
5. Step 5: Solve for x
   x = 1,778,042.29/1,400.76
6. Step 6: Final answer
   x = 1,269.34