Finding the Fourth Proportional to 1,490,290.00, 2,056,868.59 and 878,407.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,490,290.00 : 2,056,868.59 = 878,407.04 : x
2. Step 2: Convert to fraction form
   1,490,290.00/2,056,868.59 = 878,407.04/x
3. Step 3: Cross multiply
   1,490,290.00x = 2,056,868.59 × 878,407.04
4. Step 4: Simplify right side
   1,490,290.00x = 1,806,767,848,619.10
5. Step 5: Solve for x
   x = 1,806,767,848,619.10/1,490,290.00
6. Step 6: Final answer
   x = 1,212,359.91