Finding the Fourth Proportional to 2,219,946.21, 3,328,570.89 and 870,492.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219,946.21 : 3,328,570.89 = 870,492.15 : x
2. Step 2: Convert to fraction form
   2,219,946.21/3,328,570.89 = 870,492.15/x
3. Step 3: Cross multiply
   2,219,946.21x = 3,328,570.89 × 870,492.15
4. Step 4: Simplify right side
   2,219,946.21x = 2,897,494,830,463.51
5. Step 5: Solve for x
   x = 2,897,494,830,463.51/2,219,946.21
6. Step 6: Final answer
   x = 1,305,209.48