Finding the Fourth Proportional to 1,321,522.55, 1,853,864.05 and 1,321,522.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,321,522.55 : 1,853,864.05 = 1,321,522.55 : x
2. Step 2: Convert to fraction form
   1,321,522.55/1,853,864.05 = 1,321,522.55/x
3. Step 3: Cross multiply
   1,321,522.55x = 1,853,864.05 × 1,321,522.55
4. Step 4: Simplify right side
   1,321,522.55x = 2,449,923,146,709.33
5. Step 5: Solve for x
   x = 2,449,923,146,709.33/1,321,522.55
6. Step 6: Final answer
   x = 1,853,864.05