Finding the Fourth Proportional to 1,661,123.10, 2,331,870.90 and 1,661,123.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,661,123.10 : 2,331,870.90 = 1,661,123.10 : x
2. Step 2: Convert to fraction form
   1,661,123.10/2,331,870.90 = 1,661,123.10/x
3. Step 3: Cross multiply
   1,661,123.10x = 2,331,870.90 × 1,661,123.10
4. Step 4: Simplify right side
   1,661,123.10x = 3,873,524,618,207.79
5. Step 5: Solve for x
   x = 3,873,524,618,207.79/1,661,123.10
6. Step 6: Final answer
   x = 2,331,870.90