Finding the Fourth Proportional to 1,591,264,488.18, 2,195,653,483.89 and 886,398,928.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,591,264,488.18 : 2,195,653,483.89 = 886,398,928.50 : x
2. Step 2: Convert to fraction form
   1,591,264,488.18/2,195,653,483.89 = 886,398,928.50/x
3. Step 3: Cross multiply
   1,591,264,488.18x = 2,195,653,483.89 × 886,398,928.50
4. Step 4: Simplify right side
   1,591,264,488.18x = 1,946,224,895,477,387,776
5. Step 5: Solve for x
   x = 1,946,224,895,477,387,776/1,591,264,488.18
6. Step 6: Final answer
   x = 1,223,068,138.54