Finding the Fourth Proportional to 2,817,290.88, 3,887,838.72 and 1,528,128

Step by Step Solution

1. Step 1: Write the proportion equation
   2,817,290.88 : 3,887,838.72 = 1,528,128 : x
2. Step 2: Convert to fraction form
   2,817,290.88/3,887,838.72 = 1,528,128/x
3. Step 3: Cross multiply
   2,817,290.88x = 3,887,838.72 × 1,528,128
4. Step 4: Simplify right side
   2,817,290.88x = 5,941,115,207,516.16
5. Step 5: Solve for x
   x = 5,941,115,207,516.16/2,817,290.88
6. Step 6: Final answer
   x = 2,108,804.33