Finding the Fourth Proportional to 1,552,477.81, 2,142,443.61 and 864,157.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,552,477.81 : 2,142,443.61 = 864,157.15 : x
2. Step 2: Convert to fraction form
   1,552,477.81/2,142,443.61 = 864,157.15/x
3. Step 3: Cross multiply
   1,552,477.81x = 2,142,443.61 × 864,157.15
4. Step 4: Simplify right side
   1,552,477.81x = 1,851,407,964,053.31
5. Step 5: Solve for x
   x = 1,851,407,964,053.31/1,552,477.81
6. Step 6: Final answer
   x = 1,192,550.36