Finding the Fourth Proportional to 1,630,297.89, 2,249,707.01 and 905,145.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,630,297.89 : 2,249,707.01 = 905,145.42 : x
2. Step 2: Convert to fraction form
   1,630,297.89/2,249,707.01 = 905,145.42/x
3. Step 3: Cross multiply
   1,630,297.89x = 2,249,707.01 × 905,145.42
4. Step 4: Simplify right side
   1,630,297.89x = 2,036,311,991,917.67
5. Step 5: Solve for x
   x = 2,036,311,991,917.67/1,630,297.89
6. Step 6: Final answer
   x = 1,249,042.89