Finding the Fourth Proportional to 2,123,784.12, 2,931,121.98 and 1,206,242.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123,784.12 : 2,931,121.98 = 1,206,242.04 : x
2. Step 2: Convert to fraction form
   2,123,784.12/2,931,121.98 = 1,206,242.04/x
3. Step 3: Cross multiply
   2,123,784.12x = 2,931,121.98 × 1,206,242.04
4. Step 4: Simplify right side
   2,123,784.12x = 3,535,642,556,644.04
5. Step 5: Solve for x
   x = 3,535,642,556,644.04/2,123,784.12
6. Step 6: Final answer
   x = 1,664,784.35