Finding the Fourth Proportional to 989,556.50, 1,365,590.61 and 536,847.50

Step by Step Solution

1. Step 1: Write the proportion equation
   989,556.50 : 1,365,590.61 = 536,847.50 : x
2. Step 2: Convert to fraction form
   989,556.50/1,365,590.61 = 536,847.50/x
3. Step 3: Cross multiply
   989,556.50x = 1,365,590.61 × 536,847.50
4. Step 4: Simplify right side
   989,556.50x = 733,113,898,174.02
5. Step 5: Solve for x
   x = 733,113,898,174.02/989,556.50
6. Step 6: Final answer
   x = 740,850.98