Finding the Fourth Proportional to 1,384.09, 2,077.52 and 994.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,384.09 : 2,077.52 = 994.55 : x
2. Step 2: Convert to fraction form
   1,384.09/2,077.52 = 994.55/x
3. Step 3: Cross multiply
   1,384.09x = 2,077.52 × 994.55
4. Step 4: Simplify right side
   1,384.09x = 2,066,182.16
5. Step 5: Solve for x
   x = 2,066,182.16/1,384.09
6. Step 6: Final answer
   x = 1,492.81