Finding the Fourth Proportional to 1,181,603.01, 1,630,603.83 and 645,059.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,181,603.01 : 1,630,603.83 = 645,059.01 : x
2. Step 2: Convert to fraction form
   1,181,603.01/1,630,603.83 = 645,059.01/x
3. Step 3: Cross multiply
   1,181,603.01x = 1,630,603.83 × 645,059.01
4. Step 4: Simplify right side
   1,181,603.01x = 1,051,835,692,282.01
5. Step 5: Solve for x
   x = 1,051,835,692,282.01/1,181,603.01
6. Step 6: Final answer
   x = 890,176.89