Finding the Fourth Proportional to 1,230,430.10, 1,843,917.15 and 978,142.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,230,430.10 : 1,843,917.15 = 978,142.10 : x
2. Step 2: Convert to fraction form
   1,230,430.10/1,843,917.15 = 978,142.10/x
3. Step 3: Cross multiply
   1,230,430.10x = 1,843,917.15 × 978,142.10
4. Step 4: Simplify right side
   1,230,430.10x = 1,803,612,993,327.02
5. Step 5: Solve for x
   x = 1,803,612,993,327.02/1,230,430.10
6. Step 6: Final answer
   x = 1,465,839.46