Finding the Fourth Proportional to 2,136,111.90, 3,205,347.21 and 874,823.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,136,111.90 : 3,205,347.21 = 874,823.10 : x
2. Step 2: Convert to fraction form
   2,136,111.90/3,205,347.21 = 874,823.10/x
3. Step 3: Cross multiply
   2,136,111.90x = 3,205,347.21 × 874,823.10
4. Step 4: Simplify right side
   2,136,111.90x = 2,804,111,782,828.55
5. Step 5: Solve for x
   x = 2,804,111,782,828.55/2,136,111.90
6. Step 6: Final answer
   x = 1,312,717.65