Finding the Fourth Proportional to 1,120,201.30, 1,677,191.55 and 1,089,097.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,120,201.30 : 1,677,191.55 = 1,089,097.30 : x
2. Step 2: Convert to fraction form
   1,120,201.30/1,677,191.55 = 1,089,097.30/x
3. Step 3: Cross multiply
   1,120,201.30x = 1,677,191.55 × 1,089,097.30
4. Step 4: Simplify right side
   1,120,201.30x = 1,826,624,788,687.82
5. Step 5: Solve for x
   x = 1,826,624,788,687.82/1,120,201.30
6. Step 6: Final answer
   x = 1,630,621.91