Finding the Fourth Proportional to 1,089,139.24, 1,630,364.82 and 986,496.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,089,139.24 : 1,630,364.82 = 986,496.04 : x
2. Step 2: Convert to fraction form
   1,089,139.24/1,630,364.82 = 986,496.04/x
3. Step 3: Cross multiply
   1,089,139.24x = 1,630,364.82 × 986,496.04
4. Step 4: Simplify right side
   1,089,139.24x = 1,608,348,438,685.31
5. Step 5: Solve for x
   x = 1,608,348,438,685.31/1,089,139.24
6. Step 6: Final answer
   x = 1,476,715.17