Finding the Fourth Proportional to 1,552,460.54, 2,142,419.78 and 864,139.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,552,460.54 : 2,142,419.78 = 864,139.88 : x
2. Step 2: Convert to fraction form
   1,552,460.54/2,142,419.78 = 864,139.88/x
3. Step 3: Cross multiply
   1,552,460.54x = 2,142,419.78 × 864,139.88
4. Step 4: Simplify right side
   1,552,460.54x = 1,851,350,356,566.03
5. Step 5: Solve for x
   x = 1,851,350,356,566.03/1,552,460.54
6. Step 6: Final answer
   x = 1,192,526.52