Finding the Fourth Proportional to 1,618,017.30, 2,233,307.97 and 939,172.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,618,017.30 : 2,233,307.97 = 939,172.50 : x
2. Step 2: Convert to fraction form
   1,618,017.30/2,233,307.97 = 939,172.50/x
3. Step 3: Cross multiply
   1,618,017.30x = 2,233,307.97 × 939,172.50
4. Step 4: Simplify right side
   1,618,017.30x = 2,097,461,429,454.83
5. Step 5: Solve for x
   x = 2,097,461,429,454.83/1,618,017.30
6. Step 6: Final answer
   x = 1,296,315.82