Finding the Fourth Proportional to 1,431,654, 1,975,632.18 and 787,069.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,431,654 : 1,975,632.18 = 787,069.50 : x
2. Step 2: Convert to fraction form
   1,431,654/1,975,632.18 = 787,069.50/x
3. Step 3: Cross multiply
   1,431,654x = 1,975,632.18 × 787,069.50
4. Step 4: Simplify right side
   1,431,654x = 1,554,959,832,096.51
5. Step 5: Solve for x
   x = 1,554,959,832,096.51/1,431,654
6. Step 6: Final answer
   x = 1,086,128.23